diff --git a/.changeset/cuddly-apricots-fetch.md b/.changeset/cuddly-apricots-fetch.md
new file mode 100644
index 0000000000..77126268a8
--- /dev/null
+++ b/.changeset/cuddly-apricots-fetch.md
@@ -0,0 +1,5 @@
+---
+'@backstage/frontend-plugin-api': patch
+---
+
+Added a new Utility API, `DialogApi`, which can be used to show dialogs in the React tree that can collect input from the user.
diff --git a/packages/frontend-plugin-api/src/apis/definitions/DialogApi.ts b/packages/frontend-plugin-api/src/apis/definitions/DialogApi.ts
new file mode 100644
index 0000000000..ce19cb8d26
--- /dev/null
+++ b/packages/frontend-plugin-api/src/apis/definitions/DialogApi.ts
@@ -0,0 +1,178 @@
+/*
+ * Copyright 2025 The Backstage Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { createApiRef } from '@backstage/core-plugin-api';
+
+/**
+ * A handle for an open dialog that can be used to interact with it.
+ *
+ * @remarks
+ *
+ * Dialogs can be opened using either {@link DialogApi.show} or {@link DialogApi.showModal}.
+ *
+ * @public
+ */
+export interface DialogApiDialog<TResult = unknown> {
+  /**
+   * Closes the dialog with thet provided result.
+   *
+   * @remarks
+   *
+   * If the dialog is a modal dialog a result must always be provided. If it's a regular dialog then passing a result is optional.
+   */
+  close(
+    ...args: undefined extends TResult ? [result?: TResult] : [result: TResult]
+  ): void;
+
+  /**
+   * Replaces the content of the dialog with the provided element or component, causing it to be rerenedered.
+   */
+  update(
+    elementOrComponent:
+      | React.JSX.Element
+      | ((props: { dialog: DialogApiDialog<TResult> }) => JSX.Element),
+  ): void;
+
+  /**
+   * Wait until the dialog is closed and return the result.
+   *
+   * @remarks
+   *
+   * If the dialog is a modal dialog a result will always be returned. If it's a regular dialog then the result may be `undefined`.
+   */
+  result(): Promise<TResult>;
+}
+
+/**
+ * A Utility API for showing dialogs that render in the React tree and return a result.
+ *
+ * @public
+ */
+export interface DialogApi {
+  /**
+   * Opens a modal dialog and returns a handle to it.
+   *
+   * @remarks
+   *
+   * This dialog can be closed by calling the `close` method on the returned handle, optionally providing a result.
+   * The dialog can also be closed by the user by clicking the backdrop or pressing the escape key.
+   *
+   * If the dialog is closed without a result, the result will be `undefined`.
+   *
+   * @example
+   *
+   * ### Example with inline dialog content
+   * ```tsx
+   * const dialog = dialogApi.show<boolean>(
+   *   <DialogContent>
+   *     <DialogTitle>Are you sure?</DialogTitle>
+   *     <DialogActions>
+   *       <Button onClick={() => dialog.close(true)}>Yes</Button>
+   *       <Button onClick={() => dialog.close(false)}>No</Button>
+   *     </DialogActions>
+   *   </DialogContent>
+   * );
+   * const result = await dialog.result();
+   * ```
+   *
+   * @example
+   *
+   * ### Example with separate dialog component
+   * ```tsx
+   * function CustomDialog({ dialog }: { dialog: DialogApiDialog<boolean | undefined> }) {
+   *   return (
+   *     <DialogContent>
+   *       <DialogTitle>Are you sure?</DialogTitle>
+   *       <DialogActions>
+   *         <Button onClick={() => dialog.close(true)}>Yes</Button>
+   *         <Button onClick={() => dialog.close(false)}>No</Button>
+   *       </DialogActions>
+   *     </DialogContent>
+   *   )
+   * }
+   * const result = await dialogApi.show(CustomDialog).result();
+   * ```
+   *
+   * @param elementOrComponent - The element or component to render in the dialog. If a component is provided, it will be provided with a `dialog` prop that contains the dialog handle.
+   * @public
+   */
+  show<TResult = {}>(
+    elementOrComponent:
+      | JSX.Element
+      | ((props: {
+          dialog: DialogApiDialog<TResult | undefined>;
+        }) => JSX.Element),
+  ): DialogApiDialog<TResult | undefined>;
+
+  /**
+   * Opens a modal dialog and returns a handle to it.
+   *
+   * @remarks
+   *
+   * This dialog can not be closed in any other way than calling the `close` method on the returned handle and providing a result.
+   *
+   * @example
+   *
+   * ### Example with inline dialog content
+   * ```tsx
+   * const dialog = dialogApi.showModal<boolean>(
+   *   <DialogContent>
+   *     <DialogTitle>Are you sure?</DialogTitle>
+   *     <DialogActions>
+   *       <Button onClick={() => dialog.close(true)}>Yes</Button>
+   *       <Button onClick={() => dialog.close(false)}>No</Button>
+   *     </DialogActions>
+   *   </DialogContent>
+   * );
+   * const result = await dialog.result();
+   * ```
+   *
+   * @example
+   *
+   * ### Example with separate dialog component
+   * ```tsx
+   * function CustomDialog({ dialog }: { dialog: DialogApiDialog<boolean> }) {
+   *   return (
+   *     <DialogContent>
+   *       <DialogTitle>Are you sure?</DialogTitle>
+   *       <DialogActions>
+   *         <Button onClick={() => dialog.close(true)}>Yes</Button>
+   *         <Button onClick={() => dialog.close(false)}>No</Button>
+   *       </DialogActions>
+   *     </DialogContent>
+   *   )
+   * }
+   * const result = await dialogApi.showModal(CustomDialog).result();
+   * ```
+   *
+   * @param elementOrComponent - The element or component to render in the dialog. If a component is provided, it will be provided with a `dialog` prop that contains the dialog handle.
+   * @public
+   */
+  showModal<TResult = {}>(
+    elementOrComponent:
+      | JSX.Element
+      | ((props: { dialog: DialogApiDialog<TResult> }) => JSX.Element),
+  ): DialogApiDialog<TResult>;
+}
+
+/**
+ * The `ApiRef` of {@link DialogApi}.
+ *
+ * @public
+ */
+export const dialogApiRef = createApiRef<DialogApi>({
+  id: 'core.dialog',
+});
diff --git a/packages/frontend-plugin-api/src/apis/definitions/index.ts b/packages/frontend-plugin-api/src/apis/definitions/index.ts
index d766a8dfdf..0da23fcacb 100644
--- a/packages/frontend-plugin-api/src/apis/definitions/index.ts
+++ b/packages/frontend-plugin-api/src/apis/definitions/index.ts
@@ -42,6 +42,7 @@ export * from './FeatureFlagsApi';
 export * from './FetchApi';
 export * from './IconsApi';
 export * from './IdentityApi';
+export * from './DialogApi';
 export * from './OAuthRequestApi';
 export * from './RouteResolutionApi';
 export * from './StorageApi';