diff --git a/public/app/plugins/datasource/cloudwatch/components/QueryEditor/MetricsQueryEditor/SQLBuilderEditor/SQLGroupBy.test.tsx b/public/app/plugins/datasource/cloudwatch/components/QueryEditor/MetricsQueryEditor/SQLBuilderEditor/SQLGroupBy.test.tsx
index 9f98569e3e7..c8a55ab74ae 100644
--- a/public/app/plugins/datasource/cloudwatch/components/QueryEditor/MetricsQueryEditor/SQLBuilderEditor/SQLGroupBy.test.tsx
+++ b/public/app/plugins/datasource/cloudwatch/components/QueryEditor/MetricsQueryEditor/SQLBuilderEditor/SQLGroupBy.test.tsx
@@ -2,6 +2,8 @@ import { render, screen, waitFor } from '@testing-library/react';
 import userEvent from '@testing-library/user-event';
 import selectEvent from 'react-select-event';
 
+import { config } from '@grafana/runtime';
+
 import { setupMockedDataSource } from '../../../../__mocks__/CloudWatchDataSource';
 import { createArray, createGroupBy } from '../../../../__mocks__/sqlUtils';
 import { CloudWatchMetricsQuery, MetricEditorMode, MetricQueryType, SQLExpression } from '../../../../types';
@@ -25,6 +27,10 @@ const makeSQLQuery = (sql?: SQLExpression): CloudWatchMetricsQuery => ({
 datasource.resources.getDimensionKeys = jest.fn().mockResolvedValue([]);
 
 describe('Cloudwatch SQLGroupBy', () => {
+  afterEach(() => {
+    baseProps.datasource.resources.isMonitoringAccount = jest.fn().mockResolvedValue(false);
+  });
+
   const baseProps = {
     query: makeSQLQuery(),
     datasource,
@@ -55,6 +61,44 @@ describe('Cloudwatch SQLGroupBy', () => {
     });
   });
 
+  it('should show Account ID in groupBy options if feature flag is enabled', async () => {
+    config.featureToggles.cloudWatchCrossAccountQuerying = true;
+    config.featureToggles.cloudwatchMetricInsightsCrossAccount = true;
+    baseProps.datasource.resources.isMonitoringAccount = jest.fn().mockResolvedValue(true);
+    const query = makeSQLQuery();
+
+    render(<SQLGroupBy {...baseProps} query={query} />);
+    const addButton = screen.getByRole('button', { name: 'Add' });
+    await userEvent.click(addButton);
+    selectEvent.openMenu(screen.getByLabelText(/Group by/));
+    expect(screen.getByText('Account ID')).toBeInTheDocument();
+  });
+
+  it('should not show Account ID in groupBy options if not using a monitoring account', async () => {
+    config.featureToggles.cloudWatchCrossAccountQuerying = true;
+    config.featureToggles.cloudwatchMetricInsightsCrossAccount = true;
+    baseProps.datasource.resources.isMonitoringAccount = jest.fn().mockResolvedValue(false);
+
+    const query = makeSQLQuery();
+
+    render(<SQLGroupBy {...baseProps} query={query} />);
+    const addButton = screen.getByRole('button', { name: 'Add' });
+    await userEvent.click(addButton);
+    selectEvent.openMenu(screen.getByLabelText(/Group by/));
+    expect(screen.queryByText('Account ID')).not.toBeInTheDocument();
+  });
+
+  it('should not show Account ID in groupBy options if feature flag is disabled', async () => {
+    config.featureToggles.cloudwatchMetricInsightsCrossAccount = false;
+    const query = makeSQLQuery();
+
+    render(<SQLGroupBy {...baseProps} query={query} />);
+    const addButton = screen.getByRole('button', { name: 'Add' });
+    await userEvent.click(addButton);
+    selectEvent.openMenu(screen.getByLabelText(/Group by/));
+    expect(screen.queryByText('Account ID')).not.toBeInTheDocument();
+  });
+
   it('should allow adding a new dimension filter', async () => {
     const query = makeSQLQuery({
       groupBy: undefined,
diff --git a/public/app/plugins/datasource/cloudwatch/components/QueryEditor/MetricsQueryEditor/SQLBuilderEditor/SQLGroupBy.tsx b/public/app/plugins/datasource/cloudwatch/components/QueryEditor/MetricsQueryEditor/SQLBuilderEditor/SQLGroupBy.tsx
index 359b896ad88..fa4fe294ad8 100644
--- a/public/app/plugins/datasource/cloudwatch/components/QueryEditor/MetricsQueryEditor/SQLBuilderEditor/SQLGroupBy.tsx
+++ b/public/app/plugins/datasource/cloudwatch/components/QueryEditor/MetricsQueryEditor/SQLBuilderEditor/SQLGroupBy.tsx
@@ -2,6 +2,7 @@ import { useMemo, useState } from 'react';
 
 import { SelectableValue, toOption } from '@grafana/data';
 import { AccessoryButton, EditorList, InputGroup } from '@grafana/experimental';
+import { config } from '@grafana/runtime';
 import { Select } from '@grafana/ui';
 
 import { CloudWatchDatasource } from '../../../../datasource';
@@ -10,7 +11,7 @@ import {
   QueryEditorGroupByExpression,
   QueryEditorPropertyType,
 } from '../../../../expressions';
-import { useDimensionKeys } from '../../../../hooks';
+import { useDimensionKeys, useIsMonitoringAccount } from '../../../../hooks';
 import { CloudWatchMetricsQuery } from '../../../../types';
 
 import {
@@ -31,6 +32,7 @@ const SQLGroupBy = ({ query, datasource, onQueryChange }: SQLGroupByProps) => {
   const sql = query.sql ?? {};
   const groupBysFromQuery = useMemo(() => getFlattenedGroupBys(query.sql ?? {}), [query.sql]);
   const [items, setItems] = useState<QueryEditorGroupByExpression[]>(groupBysFromQuery);
+  const isMonitoringAccount = useIsMonitoringAccount(datasource.resources, query.region);
 
   const namespace = getNamespaceFromExpression(sql.from);
   const metricName = getMetricNameFromExpression(sql.select);
@@ -38,8 +40,20 @@ const SQLGroupBy = ({ query, datasource, onQueryChange }: SQLGroupByProps) => {
   const baseOptions = useDimensionKeys(datasource, { region: query.region, namespace, metricName });
   const options = useMemo(
     // Exclude options we've already selected
-    () => baseOptions.filter((option) => !groupBysFromQuery.some((v) => v.property.name === option.value)),
-    [baseOptions, groupBysFromQuery]
+    () => {
+      const isCrossAccountEnabled =
+        config.featureToggles.cloudWatchCrossAccountQuerying &&
+        config.featureToggles.cloudwatchMetricInsightsCrossAccount;
+
+      const baseOptionsWithAccountId =
+        isCrossAccountEnabled && isMonitoringAccount
+          ? [{ label: 'Account ID', value: 'AWS.AccountId' }, ...baseOptions]
+          : baseOptions;
+      return baseOptionsWithAccountId.filter(
+        (option) => !groupBysFromQuery.some((v) => v.property.name === option.value)
+      );
+    },
+    [baseOptions, groupBysFromQuery, isMonitoringAccount]
   );
 
   const onChange = (newItems: Array<Partial<QueryEditorGroupByExpression>>) => {
diff --git a/public/app/plugins/datasource/cloudwatch/language/cloudwatch-sql/SQLGenerator.ts b/public/app/plugins/datasource/cloudwatch/language/cloudwatch-sql/SQLGenerator.ts
index a6b7f2fb291..e9a41bac30b 100644
--- a/public/app/plugins/datasource/cloudwatch/language/cloudwatch-sql/SQLGenerator.ts
+++ b/public/app/plugins/datasource/cloudwatch/language/cloudwatch-sql/SQLGenerator.ts
@@ -160,8 +160,11 @@ export default class SQLGenerator {
     const startsWithNumber = /^\d/;
 
     const interpolated = this.templateSrv.replace(label, {}, 'raw');
-    if (specialCharacters.test(interpolated) || startsWithNumber.test(interpolated)) {
-      return `"${label}"`;
+    if (interpolated !== 'AWS.AccountId') {
+      // AWS.AccountId should never be in quotes
+      if (specialCharacters.test(interpolated) || startsWithNumber.test(interpolated)) {
+        return `"${label}"`;
+      }
     }
 
     return label;