diff --git a/bigquery/cloud-client/grantAccessToDataset.js b/bigquery/cloud-client/grantAccessToDataset.js
new file mode 100644
index 0000000000..3c56b1c9af
--- /dev/null
+++ b/bigquery/cloud-client/grantAccessToDataset.js
@@ -0,0 +1,79 @@
+// Copyright 2025 Google LLC
+//
+// 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.
+
+'use strict';
+
+async function main(datasetId, entityId, role) {
+  // [START bigquery_grant_access_to_dataset]
+
+  /**
+   * TODO(developer): Update and un-comment below lines.
+   */
+
+  // const datasetId = "my_project_id.my_dataset_name";
+
+  // ID of the user or group from whom you are adding access.
+  // const entityId = "user-or-group-to-add@example.com";
+
+  // One of the "Basic roles for datasets" described here:
+  // https://cloud.google.com/bigquery/docs/access-control-basic-roles#dataset-basic-roles
+  // const role = "READER";
+
+  const {BigQuery} = require('@google-cloud/bigquery');
+
+  // Instantiate a client.
+  const client = new BigQuery();
+
+  // Type of entity you are granting access to.
+  // Find allowed allowed entity type names here:
+  // https://cloud.google.com/bigquery/docs/reference/rest/v2/datasets#resource:-dataset
+  const entityType = 'groupByEmail';
+
+  async function grantAccessToDataset() {
+    const [dataset] = await client.dataset(datasetId).get();
+
+    // The 'access entries' array is immutable. Create a copy for modifications.
+    const entries = [...dataset.metadata.access];
+
+    // Append an AccessEntry to grant the role to a dataset.
+    // Find more details about the AccessEntry object in the BigQuery documentation:
+    // https://cloud.google.com/python/docs/reference/bigquery/latest/google.cloud.bigquery.dataset.AccessEntry
+    entries.push({
+      role,
+      [entityType]: entityId,
+    });
+
+    // Assign the array of AccessEntries back to the dataset.
+    const metadata = {
+      access: entries,
+    };
+
+    // Update will only succeed if the dataset
+    // has not been modified externally since retrieval.
+    //
+    // See the BigQuery client library documentation for more details on metadata updates:
+    // https://cloud.google.com/nodejs/docs/reference/bigquery/latest
+
+    // Update just the 'access entries' property of the dataset.
+    await client.dataset(datasetId).setMetadata(metadata);
+
+    console.log(
+      `Role '${role}' granted for entity '${entityId}' in '${datasetId}'.`
+    );
+  }
+  // [END bigquery_grant_access_to_dataset]
+  await grantAccessToDataset();
+}
+
+exports.grantAccessToDataset = main;
diff --git a/bigquery/cloud-client/grantAccessToTableOrView.js b/bigquery/cloud-client/grantAccessToTableOrView.js
new file mode 100644
index 0000000000..bbd566c411
--- /dev/null
+++ b/bigquery/cloud-client/grantAccessToTableOrView.js
@@ -0,0 +1,71 @@
+// Copyright 2025 Google LLC
+//
+// 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.
+
+'use strict';
+
+async function main(projectId, datasetId, tableId, principalId, role) {
+  // [START bigquery_grant_access_to_table_or_view]
+
+  /**
+   * TODO(developer): Update and un-comment below lines
+   */
+  // const projectId = "YOUR_PROJECT_ID";
+  // const datasetId = "YOUR_DATASET_ID";
+  // const tableId = "YOUR_TABLE_ID";
+  // const principalId = "YOUR_PRINCIPAL_ID";
+  // const role = "YOUR_ROLE";
+
+  const {BigQuery} = require('@google-cloud/bigquery');
+
+  // Instantiate a client.
+  const client = new BigQuery();
+
+  async function grantAccessToTableOrView() {
+    const dataset = client.dataset(datasetId);
+    const table = dataset.table(tableId);
+
+    // Get the IAM access policy for the table or view.
+    const [policy] = await table.getIamPolicy();
+
+    // Initialize bindings array.
+    if (!policy.bindings) {
+      policy.bindings = [];
+    }
+
+    // To grant access to a table or view
+    // add bindings to the Table or View policy.
+    //
+    // Find more details about Policy and Binding objects here:
+    // https://cloud.google.com/security-command-center/docs/reference/rest/Shared.Types/Policy
+    // https://cloud.google.com/security-command-center/docs/reference/rest/Shared.Types/Binding
+    const binding = {
+      role,
+      members: [principalId],
+    };
+    policy.bindings.push(binding);
+
+    // Set the IAM access policy with updated bindings.
+    await table.setIamPolicy(policy);
+
+    // Show a success message.
+    console.log(
+      `Role '${role}' granted for principal '${principalId}' on resource '${datasetId}.${tableId}'.`
+    );
+  }
+
+  await grantAccessToTableOrView();
+  // [END bigquery_grant_access_to_table_or_view]
+}
+
+exports.grantAccessToTableOrView = main;
diff --git a/bigquery/cloud-client/package.json b/bigquery/cloud-client/package.json
new file mode 100644
index 0000000000..fb97277d3a
--- /dev/null
+++ b/bigquery/cloud-client/package.json
@@ -0,0 +1,26 @@
+{
+  "name": "bigquery-cloud-client",
+  "description": "Big Query Cloud Client Node.js samples",
+  "version": "0.0.1",
+  "private": true,
+  "license": "Apache Version 2.0",
+  "author": "Google LLC",
+  "engines": {
+    "node": "20.x"
+  },
+  "scripts": {
+    "deploy": "gcloud app deploy",
+    "start": "node app.js",
+    "unit-test": "c8 mocha -p -j 2 test/ --timeout=10000 --exit",
+    "test": "npm run unit-test"
+  },
+  "dependencies": {
+    "@google-cloud/bigquery": "7.9.2"
+  },
+  "devDependencies": {
+    "c8": "^10.0.0",
+    "chai": "^4.5.0",
+    "mocha": "^10.0.0",
+    "sinon": "^18.0.0"
+  }
+}
diff --git a/bigquery/cloud-client/test/config.js b/bigquery/cloud-client/test/config.js
new file mode 100644
index 0000000000..00d4fd0b90
--- /dev/null
+++ b/bigquery/cloud-client/test/config.js
@@ -0,0 +1,52 @@
+// Copyright 2025 Google LLC
+//
+// 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.
+
+const uuid = require('uuid');
+const {BigQuery} = require('@google-cloud/bigquery');
+
+// Setup and teardown functions for test suites
+const setupBeforeAll = async () => {
+  const prefix = `nodejs_test_${uuid.v4().replace(/-/g, '').substring(0, 8)}`;
+  const entityId = 'example-analyst-group@google.com'; // Group account
+  const datasetId = `${prefix}_cloud_client`;
+  const tableName = `${prefix}_table`;
+  const viewName = `${prefix}_view`;
+
+  const client = new BigQuery();
+  await client
+    .createDataset(datasetId)
+    .then(() => {
+      return client.dataset(datasetId).createTable(tableName);
+    })
+    .catch(err => {
+      console.error(`Error creating table: ${err.message}`);
+    });
+
+  return {
+    datasetId: datasetId,
+    tableId: tableName,
+    viewId: viewName,
+    entityId: entityId,
+  };
+};
+
+const cleanupResources = async datasetId => {
+  const client = new BigQuery();
+  await client.dataset(datasetId).delete({deleteContents: true, force: true});
+};
+
+module.exports = {
+  setupBeforeAll,
+  cleanupResources,
+};
diff --git a/bigquery/cloud-client/test/grantAccessToDataset.test.js b/bigquery/cloud-client/test/grantAccessToDataset.test.js
new file mode 100644
index 0000000000..2fff5bfc6a
--- /dev/null
+++ b/bigquery/cloud-client/test/grantAccessToDataset.test.js
@@ -0,0 +1,58 @@
+// Copyright 2025 Google LLC
+//
+// 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.
+
+'use strict';
+
+const {beforeEach, afterEach, it, describe} = require('mocha');
+const assert = require('assert');
+const sinon = require('sinon');
+
+const {setupBeforeAll, cleanupResources} = require('./config');
+
+const {grantAccessToDataset} = require('../grantAccessToDataset');
+
+describe('grantAccessToDataset', () => {
+  let datasetId = null;
+  let entityId = null;
+  const role = 'READER';
+
+  beforeEach(async () => {
+    const response = await setupBeforeAll();
+    datasetId = response.datasetId;
+    entityId = response.entityId;
+
+    sinon.stub(console, 'log');
+    sinon.stub(console, 'error');
+  });
+
+  // Clean up after all tests.
+  afterEach(async () => {
+    await cleanupResources(datasetId);
+    console.log.restore();
+    console.error.restore();
+  });
+
+  it('should add entity to access entries', async () => {
+    // Act: Grant access to the dataset.
+    await grantAccessToDataset(datasetId, entityId, role);
+
+    // Check if our entity ID is in the updated access entries.
+    assert.strictEqual(
+      console.log.calledWith(
+        `Role '${role}' granted for entity '${entityId}' in '${datasetId}'.`
+      ),
+      true
+    );
+  });
+});
diff --git a/bigquery/cloud-client/test/grantAccessToTableOrView.test.js b/bigquery/cloud-client/test/grantAccessToTableOrView.test.js
new file mode 100644
index 0000000000..b4dc6ac39c
--- /dev/null
+++ b/bigquery/cloud-client/test/grantAccessToTableOrView.test.js
@@ -0,0 +1,65 @@
+// Copyright 2025 Google LLC
+//
+// 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.
+
+'use strict';
+
+const {describe, it, beforeEach, afterEach} = require('mocha');
+const assert = require('assert');
+const sinon = require('sinon');
+
+const {grantAccessToTableOrView} = require('../grantAccessToTableOrView');
+const {setupBeforeAll, cleanupResources} = require('./config');
+
+describe('grantAccessToTableOrView', () => {
+  let datasetId = null;
+  let entityId = null;
+  let tableId = null;
+  const projectId = process.env.GCLOUD_PROJECT;
+
+  beforeEach(async () => {
+    const response = await setupBeforeAll();
+    datasetId = response.datasetId;
+    entityId = response.entityId;
+    tableId = response.tableId;
+
+    sinon.stub(console, 'log');
+    sinon.stub(console, 'error');
+  });
+
+  afterEach(async () => {
+    await cleanupResources(datasetId);
+    console.log.restore();
+    console.error.restore();
+  });
+
+  it('should grant access to a table', async () => {
+    const roleId = 'roles/bigquery.dataViewer';
+    const principalId = `group:${entityId}`;
+
+    await grantAccessToTableOrView(
+      projectId,
+      datasetId,
+      tableId,
+      principalId,
+      roleId
+    );
+
+    assert.strictEqual(
+      console.log.calledWith(
+        `Role '${roleId}' granted for principal '${principalId}' on resource '${datasetId}.${tableId}'.`
+      ),
+      true
+    );
+  });
+});