diff --git a/catalog/app/app.tsx b/catalog/app/app.tsx
index ae417dfac70..41e2e974a44 100644
--- a/catalog/app/app.tsx
+++ b/catalog/app/app.tsx
@@ -25,7 +25,6 @@ import 'sanitize.css'
 import * as Intercom from 'components/Intercom'
 import Placeholder from 'components/Placeholder'
 import App from 'containers/App'
-import GTMLoader from 'utils/gtm'
 import * as Auth from 'containers/Auth'
 import * as Errors from 'containers/Errors'
 import * as Notifications from 'containers/Notifications'
@@ -105,7 +104,6 @@ const render = () => {
       Notifications.Provider,
       [APIConnector.Provider, { fetch, middleware: [Auth.apiMiddleware] }],
       [Auth.Provider, { storage }],
-      [GTMLoader, { gtmId: cfg.gtmId }],
       [
         Intercom.Provider,
         {
diff --git a/catalog/app/utils/Config.ts b/catalog/app/utils/Config.ts
index 7df67ecd5e8..977015fe6a7 100644
--- a/catalog/app/utils/Config.ts
+++ b/catalog/app/utils/Config.ts
@@ -24,7 +24,6 @@ export interface ConfigJson {
   registryUrl: string
   s3Proxy: string
 
-  gtmId?: string
   intercomAppId?: string
   mixpanelToken: string
   sentryDSN?: string
diff --git a/catalog/app/utils/gtm.tsx b/catalog/app/utils/gtm.tsx
deleted file mode 100644
index 95ff9a9fac4..00000000000
--- a/catalog/app/utils/gtm.tsx
+++ /dev/null
@@ -1,68 +0,0 @@
-import invariant from 'invariant'
-import * as React from 'react'
-
-interface SupportedAttrs {
-  async?: boolean
-  innerText: string
-  src: string
-}
-
-function addScript(props: Pick<SupportedAttrs, 'innerText'>): HTMLScriptElement
-function addScript(props: Pick<SupportedAttrs, 'async' | 'src'>): HTMLScriptElement
-function addScript({ async, innerText, src }: Partial<SupportedAttrs>) {
-  const s = window.document.createElement('script')
-  s.type = 'text/javascript'
-
-  if (innerText) {
-    s.innerText = innerText
-  }
-  if (async) {
-    s.async = async
-  }
-  if (src) {
-    s.src = src
-  }
-  const x = window.document.getElementsByTagName('script')[0]
-  invariant(
-    x?.parentNode,
-    'No SCRIPT or HEAD element was found, is it the DOM environment?',
-  )
-  x.parentNode.insertBefore(s, x)
-  return s
-}
-
-function removeScript(script: HTMLScriptElement) {
-  invariant(
-    script.parentNode,
-    'No SCRIPT or HEAD element was found, is it the DOM environment?',
-  )
-  script.parentNode.removeChild(script)
-}
-
-interface GTMLoaderProps {
-  children: React.ReactNode
-  gtmId: string
-}
-
-export default function GTMLoader({ children, gtmId }: GTMLoaderProps) {
-  React.useEffect(() => {
-    if (!gtmId) return
-    const gtmMain = addScript({
-      async: true,
-      src: `https://www.googletagmanager.com/gtag/js?id=${gtmId}`,
-    })
-    const gtmInit = addScript({
-      innerText: `
-        window.dataLayer = window.dataLayer || [];
-        function gtag(){dataLayer.push(arguments);}
-        gtag('js', new Date());
-        gtag('config', '${gtmId}');
-      `.replace(/\n/g, ' '),
-    })
-    return () => {
-      removeScript(gtmMain)
-      removeScript(gtmInit)
-    }
-  }, [gtmId])
-  return <>{children}</>
-}
diff --git a/catalog/config-schema.json b/catalog/config-schema.json
index 944f9a8307a..8c7aabc219e 100644
--- a/catalog/config-schema.json
+++ b/catalog/config-schema.json
@@ -93,10 +93,6 @@
       "type": "string",
       "description": "Optional"
     },
-    "gtmId": {
-      "type": "string",
-      "description": "ID for Google TagManager/Analytics service"
-    },
     "qurator": {
       "type": "boolean",
       "description": "Enable Qurator AI Assistant (powered by AWS Bedrock)"
diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index c677dacf3ec..5c7f9674df3 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -30,6 +30,7 @@ Entries inside each section should be ordered by type:
 
 ## Catalog, Lambdas
 * [Removed] Drop MARKETING mode support, delete associated dead code ([#4009](https://github.com/quiltdata/quilt/pull/4009))
+* [Removed] Delete Google Tag Manager script integration ([#4039](https://github.com/quiltdata/quilt/pull/4039))
 * [Added] Support multiple roles per user ([#3982](https://github.com/quiltdata/quilt/pull/3982))
 * [Added] Add `ui.actions = False` and `ui.actions.writeFile` for configuring visibility of buttons ([#4001](https://github.com/quiltdata/quilt/pull/4001))
 * [Added] Support creating folders and rearranging entries with drag and drop in package creation dialog ([#3999](https://github.com/quiltdata/quilt/pull/3999))