diff --git a/docs/src/pages/guides/localization/localization.md b/docs/src/pages/guides/localization/localization.md
index dc5daaf7146602..151adda47b7fb8 100644
--- a/docs/src/pages/guides/localization/localization.md
+++ b/docs/src/pages/guides/localization/localization.md
@@ -29,6 +29,7 @@ const theme = createMuiTheme({
 |:-------|:---------|:---------|
 | Azerbaijani | az-AZ | `azAZ` |
 | Chinese (Simplified) | zh-CN | `zhCN` |
+| Czech | cs-CZ | `csCz` |
 | Dutch | nl-NL | `nlNL` |
 | English (United States) | en-US | `enUS` |
 | French | fr-FR | `frFR` |
@@ -41,6 +42,7 @@ const theme = createMuiTheme({
 | Portuguese (Brazil) | pt-BR | `ptBR` |
 | Romanian | ro-RO | `roRO` |
 | Russian | ru-RU | `ruRU` |
+| Slovak | sk-SK | `skSK` |
 | Spanish | es-ES | `esES` |
 | Swedish | sv-SE | `svSE` |
 | Turkish | tr-TR | `trTR` |
diff --git a/packages/material-ui/src/locale/index.d.ts b/packages/material-ui/src/locale/index.d.ts
index fab491e0e8f26a..53405ef905022e 100644
--- a/packages/material-ui/src/locale/index.d.ts
+++ b/packages/material-ui/src/locale/index.d.ts
@@ -1,4 +1,5 @@
 export const azAZ: object;
+export const csCZ: object;
 export const deDE: object;
 export const enUS: object;
 export const esES: object;
@@ -12,6 +13,7 @@ export const plPL: object;
 export const ptBR: object;
 export const roRO: object;
 export const ruRU: object;
+export const skSK: object;
 export const svSE: object;
 export const trTR: object;
 export const ukUA: object;
diff --git a/packages/material-ui/src/locale/index.js b/packages/material-ui/src/locale/index.js
index 05b54afecc8e13..9ab400726ca460 100644
--- a/packages/material-ui/src/locale/index.js
+++ b/packages/material-ui/src/locale/index.js
@@ -28,6 +28,35 @@ export const azAZ = {
   },
 };
 
+export const csCZ = {
+  props: {
+    MuiTablePagination: {
+      backIconButtonText: 'Předchozí stránka',
+      labelRowsPerPage: 'Řádků na stránce:',
+      labelDisplayedRows: ({ from, to, count }) => `${from}-${to === -1 ? count : to} z ${count}`,
+      nextIconButtonText: 'Další stránka',
+    },
+    MuiRating: {
+      getLabelText: value => {
+        if (value === 1) {
+          return `${value} hvězdička`;
+        }
+        if (value >= 2 && value <= 4) {
+          return `${value} hvězdičky`;
+        }
+        return `${value} hvězdiček`;
+      },
+    },
+    MuiAutocomplete: {
+      clearText: 'Vymazat',
+      closeText: 'Zavřít',
+      loadingText: 'Načítání…',
+      noOptionsText: 'Žádné možnosti',
+      openText: 'Otevřít',
+    },
+  },
+};
+
 export const deDE = {
   props: {
     MuiTablePagination: {
@@ -327,6 +356,35 @@ export const ruRU = {
   },
 };
 
+export const skSK = {
+  props: {
+    MuiTablePagination: {
+      backIconButtonText: 'Predchádzajúca stránka',
+      labelRowsPerPage: 'Riadkov na stránke:',
+      labelDisplayedRows: ({ from, to, count }) => `${from}-${to === -1 ? count : to} z ${count}`,
+      nextIconButtonText: 'Ďalšia stránka',
+    },
+    MuiRating: {
+      getLabelText: value => {
+        if (value === 1) {
+          return `${value} hviezdička`;
+        }
+        if (value >= 2 && value <= 4) {
+          return `${value} hviezdičky`;
+        }
+        return `${value} hviezdičiek`;
+      },
+    },
+    MuiAutocomplete: {
+      clearText: 'Vymazať',
+      closeText: 'Zavrieť',
+      loadingText: 'Načítanie…',
+      noOptionsText: 'Žiadne možnosti',
+      openText: 'Otvoriť',
+    },
+  },
+};
+
 export const svSE = {
   props: {
     MuiTablePagination: {