diff --git a/src/pages/groupComparison/MultipleCategoryBarPlot.tsx b/src/pages/groupComparison/MultipleCategoryBarPlot.tsx
index ec6fa6e8dc8..4badab7bef4 100644
--- a/src/pages/groupComparison/MultipleCategoryBarPlot.tsx
+++ b/src/pages/groupComparison/MultipleCategoryBarPlot.tsx
@@ -58,6 +58,16 @@ export interface IMultipleCategoryBarPlotProps {
     svgRef?: (svgContainer: SVGElement | null) => void;
     pValue: number | null;
     qValue: number | null;
+    sortOption?: string;
+}
+export interface TotalSumItem {
+    majorCategory: string;
+    sum: number;
+    minorCategory: {
+        name: string;
+        count: number;
+        percentage: number;
+    }[];
 }
 
 export interface IMultipleCategoryBarPlotData {
@@ -274,6 +284,7 @@ export default class MultipleCategoryBarPlot extends React.Component<
         } else if (this.props.plotData) {
             data = this.props.plotData;
         }
+
         return data;
     }
 
@@ -424,12 +435,56 @@ export default class MultipleCategoryBarPlot extends React.Component<
     }
 
     @computed get labels() {
+        if (this.props.sortOption == 'sortByCount') {
+            _.forEach(this.data, item => {
+                item.counts.sort((a, b) =>
+                    a.majorCategory.localeCompare(b.majorCategory)
+                );
+            });
+            const totalSumArray: TotalSumItem[] = [];
+            _.forEach(this.data, item => {
+                _.forEach(item.counts, countItem => {
+                    const existingItem = _.find(
+                        totalSumArray,
+                        sumItem =>
+                            sumItem.majorCategory === countItem.majorCategory
+                    );
+                    if (existingItem) {
+                        existingItem.sum += countItem.count;
+                        existingItem.minorCategory.push({
+                            name: item.minorCategory,
+                            count: countItem.count,
+                            percentage: countItem.percentage,
+                        });
+                    } else {
+                        totalSumArray.push({
+                            majorCategory: countItem.majorCategory,
+                            sum: countItem.count,
+                            minorCategory: [
+                                {
+                                    name: item.minorCategory,
+                                    count: countItem.count,
+                                    percentage: countItem.percentage,
+                                },
+                            ],
+                        });
+                    }
+                });
+            });
+
+            totalSumArray.sort((a, b) => b.sum - a.sum);
+
+            const sortedLabels = totalSumArray.map(item => item.majorCategory);
+            return sortedLabels;
+        }
+
         if (this.data.length > 0) {
-            return sortDataByCategory(
+            const CategorizedData = sortDataByCategory(
                 this.data[0].counts.map(c => c.majorCategory),
                 x => x,
                 this.majorCategoryOrder
             );
+            return CategorizedData;
         } else {
             return [];
         }
@@ -739,7 +794,8 @@ export default class MultipleCategoryBarPlot extends React.Component<
             this.categoryCoord,
             !!this.props.horizontalBars,
             !!this.props.stacked,
-            !!this.props.percentage
+            !!this.props.percentage,
+            this.props.sortOption || 'sortByAlphabet'
         );
         return barSpecs.map(spec => (
             <VictoryBar
diff --git a/src/shared/components/plots/MultipleCategoryBarPlotUtils.spec.ts b/src/shared/components/plots/MultipleCategoryBarPlotUtils.spec.ts
index a5389d8d5cf..85f80fda953 100644
--- a/src/shared/components/plots/MultipleCategoryBarPlotUtils.spec.ts
+++ b/src/shared/components/plots/MultipleCategoryBarPlotUtils.spec.ts
@@ -252,7 +252,8 @@ describe('MultipleCategoryBarPlotUtils', () => {
                     categoryCoord,
                     false,
                     false,
-                    false
+                    false,
+                    'sortByAlphabet'
                 ),
                 []
             );
@@ -267,7 +268,8 @@ describe('MultipleCategoryBarPlotUtils', () => {
                     categoryCoord,
                     false,
                     false,
-                    false
+                    false,
+                    'sortByAlphabet'
                 ),
                 [
                     {
@@ -341,7 +343,8 @@ describe('MultipleCategoryBarPlotUtils', () => {
                     categoryCoord,
                     false,
                     false,
-                    true
+                    true,
+                    'sortByAlphabet'
                 ),
                 [
                     {
@@ -415,7 +418,8 @@ describe('MultipleCategoryBarPlotUtils', () => {
                     categoryCoord,
                     false,
                     false,
-                    false
+                    false,
+                    'sortByAlphabet'
                 ),
                 [
                     {
@@ -489,7 +493,8 @@ describe('MultipleCategoryBarPlotUtils', () => {
                     categoryCoord,
                     false,
                     false,
-                    true
+                    true,
+                    'sortByAlphabet'
                 ),
                 [
                     {
@@ -563,7 +568,8 @@ describe('MultipleCategoryBarPlotUtils', () => {
                     categoryCoord,
                     false,
                     false,
-                    false
+                    false,
+                    'sortByAlphabet'
                 ),
                 [
                     {
@@ -637,7 +643,8 @@ describe('MultipleCategoryBarPlotUtils', () => {
                     categoryCoord,
                     false,
                     false,
-                    true
+                    true,
+                    'sortByAlphabet'
                 ),
                 [
                     {
@@ -711,7 +718,8 @@ describe('MultipleCategoryBarPlotUtils', () => {
                     categoryCoord,
                     false,
                     false,
-                    false
+                    false,
+                    'sortByAlphabet'
                 ),
                 [
                     {
@@ -785,7 +793,8 @@ describe('MultipleCategoryBarPlotUtils', () => {
                     categoryCoord,
                     false,
                     false,
-                    true
+                    true,
+                    'sortByAlphabet'
                 ),
                 [
                     {
@@ -861,7 +870,8 @@ describe('MultipleCategoryBarPlotUtils', () => {
                     categoryCoord,
                     true,
                     false,
-                    false
+                    false,
+                    'sortByAlphabet'
                 ),
                 [
                     {
@@ -940,7 +950,8 @@ describe('MultipleCategoryBarPlotUtils', () => {
                     categoryCoord,
                     true,
                     false,
-                    true
+                    true,
+                    'sortByAlphabet'
                 ),
                 [
                     {
@@ -1019,7 +1030,8 @@ describe('MultipleCategoryBarPlotUtils', () => {
                     categoryCoord,
                     true,
                     false,
-                    false
+                    false,
+                    'sortByAlphabet'
                 ),
                 [
                     {
@@ -1098,7 +1110,8 @@ describe('MultipleCategoryBarPlotUtils', () => {
                     categoryCoord,
                     true,
                     false,
-                    true
+                    true,
+                    'sortByAlphabet'
                 ),
                 [
                     {
@@ -1177,7 +1190,8 @@ describe('MultipleCategoryBarPlotUtils', () => {
                     categoryCoord,
                     true,
                     false,
-                    false
+                    false,
+                    'sortByAlphabet'
                 ),
                 [
                     {
@@ -1256,7 +1270,8 @@ describe('MultipleCategoryBarPlotUtils', () => {
                     categoryCoord,
                     true,
                     false,
-                    true
+                    true,
+                    'sortByAlphabet'
                 ),
                 [
                     {
@@ -1335,7 +1350,8 @@ describe('MultipleCategoryBarPlotUtils', () => {
                     categoryCoord,
                     true,
                     false,
-                    false
+                    false,
+                    'sortByAlphabet'
                 ),
                 [
                     {
@@ -1414,7 +1430,8 @@ describe('MultipleCategoryBarPlotUtils', () => {
                     categoryCoord,
                     true,
                     false,
-                    true
+                    true,
+                    'sortByAlphabet'
                 ),
                 [
                     {
@@ -1494,7 +1511,8 @@ describe('MultipleCategoryBarPlotUtils', () => {
                     categoryCoord,
                     false,
                     false,
-                    false
+                    false,
+                    'sortByAlphabet'
                 ),
                 [
                     {
@@ -1568,7 +1586,8 @@ describe('MultipleCategoryBarPlotUtils', () => {
                     categoryCoord,
                     false,
                     false,
-                    true
+                    true,
+                    'sortByAlphabet'
                 ),
                 [
                     {
@@ -1642,7 +1661,8 @@ describe('MultipleCategoryBarPlotUtils', () => {
                     categoryCoord,
                     false,
                     false,
-                    false
+                    false,
+                    'sortByAlphabet'
                 ),
                 [
                     {
@@ -1716,7 +1736,8 @@ describe('MultipleCategoryBarPlotUtils', () => {
                     categoryCoord,
                     false,
                     false,
-                    true
+                    true,
+                    'sortByAlphabet'
                 ),
                 [
                     {
@@ -1790,7 +1811,8 @@ describe('MultipleCategoryBarPlotUtils', () => {
                     categoryCoord,
                     false,
                     false,
-                    false
+                    false,
+                    'sortByAlphabet'
                 ),
                 [
                     {
@@ -1864,7 +1886,8 @@ describe('MultipleCategoryBarPlotUtils', () => {
                     categoryCoord,
                     false,
                     false,
-                    true
+                    true,
+                    'sortByAlphabet'
                 ),
                 [
                     {
@@ -1938,7 +1961,8 @@ describe('MultipleCategoryBarPlotUtils', () => {
                     categoryCoord,
                     false,
                     false,
-                    false
+                    false,
+                    'sortByAlphabet'
                 ),
                 [
                     {
@@ -2012,7 +2036,8 @@ describe('MultipleCategoryBarPlotUtils', () => {
                     categoryCoord,
                     false,
                     false,
-                    true
+                    true,
+                    'sortByAlphabet'
                 ),
                 [
                     {
@@ -2088,7 +2113,8 @@ describe('MultipleCategoryBarPlotUtils', () => {
                     categoryCoord,
                     true,
                     false,
-                    false
+                    false,
+                    'sortByAlphabet'
                 ),
                 [
                     {
@@ -2167,7 +2193,8 @@ describe('MultipleCategoryBarPlotUtils', () => {
                     categoryCoord,
                     true,
                     true,
-                    true
+                    true,
+                    'sortByAlphabet'
                 ),
                 [
                     {
@@ -2246,7 +2273,8 @@ describe('MultipleCategoryBarPlotUtils', () => {
                     categoryCoord,
                     true,
                     false,
-                    false
+                    false,
+                    'sortByAlphabet'
                 ),
                 [
                     {
@@ -2325,7 +2353,8 @@ describe('MultipleCategoryBarPlotUtils', () => {
                     categoryCoord,
                     true,
                     true,
-                    true
+                    true,
+                    'sortByAlphabet'
                 ),
                 [
                     {
@@ -2404,7 +2433,8 @@ describe('MultipleCategoryBarPlotUtils', () => {
                     categoryCoord,
                     true,
                     false,
-                    false
+                    false,
+                    'sortByAlphabet'
                 ),
                 [
                     {
@@ -2483,7 +2513,8 @@ describe('MultipleCategoryBarPlotUtils', () => {
                     categoryCoord,
                     true,
                     true,
-                    true
+                    true,
+                    'sortByAlphabet'
                 ),
                 [
                     {
@@ -2562,7 +2593,8 @@ describe('MultipleCategoryBarPlotUtils', () => {
                     categoryCoord,
                     true,
                     false,
-                    false
+                    false,
+                    'sortByAlphabet'
                 ),
                 [
                     {
@@ -2641,7 +2673,8 @@ describe('MultipleCategoryBarPlotUtils', () => {
                     categoryCoord,
                     true,
                     true,
-                    true
+                    true,
+                    'sortByAlphabet'
                 ),
                 [
                     {
diff --git a/src/shared/components/plots/MultipleCategoryBarPlotUtils.ts b/src/shared/components/plots/MultipleCategoryBarPlotUtils.ts
index cd41f0325a0..93ad619a89a 100644
--- a/src/shared/components/plots/MultipleCategoryBarPlotUtils.ts
+++ b/src/shared/components/plots/MultipleCategoryBarPlotUtils.ts
@@ -1,6 +1,10 @@
 import { IStringAxisData } from './PlotsTabUtils';
 import _ from 'lodash';
-import { IMultipleCategoryBarPlotData } from '../../../pages/groupComparison/MultipleCategoryBarPlot';
+import {
+    IMultipleCategoryBarPlotData,
+    TotalSumItem,
+} from '../../../pages/groupComparison/MultipleCategoryBarPlot';
+import { marginLeft } from 'pages/patientView/trialMatch/style/trialMatch.module.scss';
 
 export function makePlotData(
     horzData: IStringAxisData['data'],
@@ -107,7 +111,8 @@ export function makeBarSpecs(
     categoryCoord: (categoryIndex: number) => number,
     horizontalBars: boolean,
     stacked: boolean,
-    percentage: boolean
+    percentage: boolean,
+    sortOption?: string
 ): {
     fill: string;
     data: {
@@ -117,24 +122,94 @@ export function makeBarSpecs(
         minorCategory: string;
         count: number;
         percentage: number;
-    }[]; // one data per major category, in correct order - either specified, or alphabetical
+    }[];
 }[] {
-    // one bar spec per minor category, in correct order - either specified, or alphabetical
     data = sortDataByCategory(data, d => d.minorCategory, minorCategoryOrder);
-    // reverse the order of stacked or horizontal bars
+
     if ((!horizontalBars && stacked) || (horizontalBars && !stacked)) {
         data = _.reverse(data);
     }
+    data.forEach(item => {
+        item.counts.sort((a, b) =>
+            a.majorCategory.localeCompare(b.majorCategory)
+        );
+    });
+
+    const totalSumArray: TotalSumItem[] = [];
+    data.forEach(item => {
+        item.counts.forEach(countItem => {
+            const existingItem = totalSumArray.find(
+                sumItem => sumItem.majorCategory === countItem.majorCategory
+            );
+            if (existingItem) {
+                existingItem.sum += countItem.count;
+                existingItem.minorCategory.push({
+                    name: item.minorCategory,
+                    count: countItem.count,
+                    percentage: countItem.percentage,
+                });
+            } else {
+                totalSumArray.push({
+                    majorCategory: countItem.majorCategory,
+                    sum: countItem.count,
+                    minorCategory: [
+                        {
+                            name: item.minorCategory,
+                            count: countItem.count,
+                            percentage: countItem.percentage,
+                        },
+                    ],
+                });
+            }
+        });
+    });
+
+    totalSumArray.sort((a, b) => b.sum - a.sum);
+
     return data.map(({ minorCategory, counts }) => {
         const fill = getColor(minorCategory);
-        const sortedCounts = sortDataByCategory(
-            counts,
-            d => d.majorCategory,
-            majorCategoryOrder
-        );
+
+        let categorizedCounts;
+        if (sortOption == 'sortByCount') {
+            const minorCategoryArrays: {
+                [key: string]: {
+                    majorCategory: string;
+                    count: number;
+                    percentage: number;
+                }[];
+            } = {};
+            data.forEach(item => {
+                // Extract the minorCategory from the current item
+                if (!minorCategoryArrays[item.minorCategory]) {
+                    minorCategoryArrays[item.minorCategory] = [];
+                }
+
+                // Find corresponding items in totalSumArray and add them to the array
+                totalSumArray.forEach(totalItem => {
+                    totalItem.minorCategory.forEach(minorItem => {
+                        if (minorItem.name === item.minorCategory) {
+                            minorCategoryArrays[item.minorCategory].push({
+                                majorCategory: totalItem.majorCategory,
+                                count: minorItem.count,
+                                percentage: minorItem.percentage,
+                            });
+                        }
+                    });
+                });
+            });
+
+            categorizedCounts = minorCategoryArrays[minorCategory];
+        } else {
+            categorizedCounts = sortDataByCategory(
+                counts,
+                d => d.majorCategory,
+                majorCategoryOrder
+            );
+        }
+
         return {
             fill,
-            data: sortedCounts.map((obj, index) => ({
+            data: categorizedCounts.map((obj, index) => ({
                 x: categoryCoord(index),
                 y: percentage ? obj.percentage : obj.count,
                 majorCategory: obj.majorCategory,
diff --git a/src/shared/components/plots/PlotsTab.tsx b/src/shared/components/plots/PlotsTab.tsx
index 814df5b16f7..dac31c4b9c4 100644
--- a/src/shared/components/plots/PlotsTab.tsx
+++ b/src/shared/components/plots/PlotsTab.tsx
@@ -261,6 +261,10 @@ export type ColoringMenuSelection = {
         entrezGeneId?: number;
     };
 };
+interface OptionType {
+    value: string;
+    label: string;
+}
 
 export interface IPlotsTabProps {
     filteredSamplesByDetailedCancerType: MobxPromise<{
@@ -439,8 +443,9 @@ export default class PlotsTab extends React.Component<IPlotsTabProps, {}> {
     private scrollPane: HTMLDivElement;
     private dummyScrollPane: HTMLDivElement;
     private scrollingDummyPane = false;
-    @observable plotElementWidth = 0;
 
+    @observable plotElementWidth = 0;
+    @observable sortOption: string = 'sortByAlphabet';
     @observable boxPlotSortByMedian = false;
     @observable.ref searchCaseInput: string;
     @observable.ref searchMutationInput: string;
@@ -848,6 +853,8 @@ export default class PlotsTab extends React.Component<IPlotsTabProps, {}> {
         this.horzSelection = this.initAxisMenuSelection(false);
         this.vertSelection = this.initAxisMenuSelection(true);
         this.coloringMenuSelection = this.initColoringMenuSelection();
+        this.sortOption = 'sortByAlphabet';
+        this.handleChangeSortOption = this.handleChangeSortOption.bind(this);
 
         this.searchCaseInput = '';
         this.searchMutationInput = '';
@@ -1488,7 +1495,16 @@ export default class PlotsTab extends React.Component<IPlotsTabProps, {}> {
             selectedCategories: [],
         });
     }
-
+    handleChangeSortOption(selectedOption: OptionType) {
+        if (selectedOption) {
+            console.log(selectedOption, 'thisisselectedoptions');
+            console.log(this.sortOption, 'thisSOrtts');
+            this.sortOption = selectedOption.value;
+            // this.setState({ sortOption: selectedOption.value });
+        } else {
+            // Handle case when selectedOption is null (if needed)
+        }
+    }
     private initColoringMenuSelection(): ColoringMenuSelection {
         const self = this;
         return observable({
@@ -4448,6 +4464,32 @@ export default class PlotsTab extends React.Component<IPlotsTabProps, {}> {
                             </label>
                         </div>
                     )}
+                    {this.isStacked && (this.plotType.result==3) && (
+                        <div className="form-group">
+                            <label style={{ margin: '0' }}>
+                                <b>Sort</b>
+                            </label>
+                            <div style={{ display: 'flex' }}>
+                                <ReactSelect
+                                    name="sortOption"
+                                    value={this.sortOption}
+                                    onChange={this.handleChangeSortOption}
+                                    options={[
+                                        {
+                                            value: 'sortByAlphabet',
+                                            label: 'Sort by Alphabet',
+                                        },
+                                        {
+                                            value: 'sortByCount',
+                                            label: 'Sort by Count',
+                                        },
+                                    ]}
+                                    clearable={false}
+                                    searchable={false}
+                                />
+                            </div>
+                        </div>
+                    )}
                     {showRegression && (
                         <div className="checkbox" style={{ marginTop: 14 }}>
                             <label>
@@ -5193,7 +5235,16 @@ export default class PlotsTab extends React.Component<IPlotsTabProps, {}> {
             DownloadControlOption.SHOW_ALL
         );
     }
-
+    get isStacked() {
+        const isPercentage =
+            this.discreteVsDiscretePlotType ===
+            DiscreteVsDiscretePlotType.PercentageStackedBar;
+        return (
+            isPercentage ||
+            this.discreteVsDiscretePlotType ===
+                DiscreteVsDiscretePlotType.StackedBar
+        );
+    }
     @computed get plot() {
         const promises: MobxPromise<any>[] = [
             this.plotType,
@@ -5400,6 +5451,7 @@ export default class PlotsTab extends React.Component<IPlotsTabProps, {}> {
                                     horizontalBars={this.horizontalBars}
                                     percentage={isPercentage}
                                     stacked={isStacked}
+                                    sortOption={this.sortOption}
                                 />
                             );
                         }