diff --git a/docs/Inputs.md b/docs/Inputs.md
index e9b620929e2..ac4e8afb4db 100644
--- a/docs/Inputs.md
+++ b/docs/Inputs.md
@@ -1338,6 +1338,28 @@ const choices = [
 ];
 ```
 
+You can render any item as disabled by setting its `disabled` property to `true`: 
+
+```jsx
+const choices = [
+    { _id: 123, full_name: 'Leo Tolstoi', sex: 'M' },
+    { _id: 456, full_name: 'Jane Austen', sex: 'F' },
+    { _id: 1, full_name: 'System Administrator', sex: 'F', disabled: true },
+];
+<SelectArrayInput source="author_id" choices={choices} optionText="full_name" optionValue="_id" />
+```
+
+You can use a custom field name by setting the `disableValue` prop: 
+
+```jsx
+const choices = [
+    { _id: 123, full_name: 'Leo Tolstoi', sex: 'M' },
+    { _id: 456, full_name: 'Jane Austen', sex: 'F' },
+    { _id: 987, full_name: 'Jack Harden', sex: 'M', not_available: true },
+];
+<SelectArrayInput source="contact_id" choices={choices} optionText="full_name" optionValue="_id" disableValue="not_available" />
+```
+
 Lastly, use the `options` attribute if you want to override any of the `<Select>` attributes:
 
 {% raw %}
diff --git a/packages/ra-core/src/form/useChoices.ts b/packages/ra-core/src/form/useChoices.ts
index 51259d003d6..d54115bd1c4 100644
--- a/packages/ra-core/src/form/useChoices.ts
+++ b/packages/ra-core/src/form/useChoices.ts
@@ -29,6 +29,7 @@ export interface ChoicesProps {
 export interface UseChoicesOptions {
     optionValue?: string;
     optionText?: OptionTextElement | OptionText | string;
+    disableValue?: string;
     translateChoice?: boolean;
 }
 
@@ -46,6 +47,7 @@ export interface UseChoicesOptions {
 const useChoices = ({
     optionText = 'name',
     optionValue = 'id',
+    disableValue = 'disabled',
     translateChoice = true,
 }: UseChoicesOptions) => {
     const translate = useTranslate();
@@ -73,9 +75,14 @@ const useChoices = ({
         optionValue,
     ]);
 
+    const getDisableValue = useCallback(choice => get(choice, disableValue), [
+        disableValue,
+    ]);
+
     return {
         getChoiceText,
         getChoiceValue,
+        getDisableValue,
     };
 };
 
diff --git a/packages/ra-ui-materialui/src/input/SelectArrayInput.spec.tsx b/packages/ra-ui-materialui/src/input/SelectArrayInput.spec.tsx
index ebea1064592..29a79343737 100644
--- a/packages/ra-ui-materialui/src/input/SelectArrayInput.spec.tsx
+++ b/packages/ra-ui-materialui/src/input/SelectArrayInput.spec.tsx
@@ -171,6 +171,29 @@ describe('<SelectArrayInput />', () => {
         expect(queryByText('Programming')).not.toBeNull();
     });
 
+    it('should render disable choices marked so', () => {
+        const { getByRole, getByText } = render(
+            <Form
+                onSubmit={jest.fn()}
+                render={() => (
+                    <SelectArrayInput
+                        {...defaultProps}
+                        choices={[
+                            { id: 'ang', name: 'Angular' },
+                            { id: 'rea', name: 'React', disabled: true },
+                        ]}
+                    />
+                )}
+            />
+        );
+        const select = getByRole('button');
+        fireEvent.mouseDown(select);
+        const option1 = getByText('Angular');
+        expect(option1.getAttribute('aria-disabled')).toEqual('false');
+
+        const option2 = getByText('React');
+        expect(option2.getAttribute('aria-disabled')).toEqual('true');
+    });
     it('should translate the choices', () => {
         const { getByRole, queryByText } = render(
             <TestTranslationProvider translate={x => `**${x}**`}>
diff --git a/packages/ra-ui-materialui/src/input/SelectArrayInput.tsx b/packages/ra-ui-materialui/src/input/SelectArrayInput.tsx
index aab4272f2f3..da561832d3f 100644
--- a/packages/ra-ui-materialui/src/input/SelectArrayInput.tsx
+++ b/packages/ra-ui-materialui/src/input/SelectArrayInput.tsx
@@ -41,6 +41,7 @@ const sanitizeRestProps = ({
     crudGetMInputWithOptionsPropsatching,
     crudGetOInputWithOptionsPropsne,
     defaultValue,
+    disableValue,
     filter,
     filterToQuery,
     formClassName,
@@ -143,6 +144,7 @@ const SelectArrayInput: FunctionComponent<SelectArrayInputProps> = props => {
         choices = [],
         classes: classesOverride,
         className,
+        disableValue,
         format,
         helperText,
         label,
@@ -173,9 +175,10 @@ const SelectArrayInput: FunctionComponent<SelectArrayInputProps> = props => {
         }
     }, []);
 
-    const { getChoiceText, getChoiceValue } = useChoices({
+    const { getChoiceText, getChoiceValue, getDisableValue } = useChoices({
         optionText,
         optionValue,
+        disableValue,
         translateChoice,
     });
     const {
@@ -204,12 +207,13 @@ const SelectArrayInput: FunctionComponent<SelectArrayInputProps> = props => {
                 <MenuItem
                     key={getChoiceValue(choice)}
                     value={getChoiceValue(choice)}
+                    disabled={getDisableValue(choice)}
                 >
                     {renderMenuItemOption(choice)}
                 </MenuItem>
             ) : null;
         },
-        [getChoiceValue, renderMenuItemOption]
+        [getChoiceValue, getDisableValue, renderMenuItemOption]
     );
 
     if (loading) {
@@ -311,6 +315,7 @@ SelectArrayInput.propTypes = {
         PropTypes.element,
     ]).isRequired,
     optionValue: PropTypes.string.isRequired,
+    disableValue: PropTypes.string,
     resource: PropTypes.string,
     source: PropTypes.string,
     translateChoice: PropTypes.bool,
@@ -320,6 +325,7 @@ SelectArrayInput.defaultProps = {
     options: {},
     optionText: 'name',
     optionValue: 'id',
+    disableValue: 'disabled',
     translateChoice: true,
 };