William Taft - Administration
| First Lady | Helen Taft |
| Vice President | James S. Sherman |
| Secretary of State | Philander C. Knox (1909–1913) |
| Secretary of the Interior | Richard A. Ballinger (1909–1911) |
| Secretary of the Interior | Walter L. Fisher (1911–1913) |
| Attorney General | George W. Wickersham |
| Postmaster General | Frank H. Hitchcock (1909–1913) |
| Secretary of the Treasury | Franklin MacVeagh (1909–1913) |
| Secretary of Agriculture | James Wilson (1909–1913) |
| Secretary of Commerce and Labor | Charles Nagel (1909–1913) |
| Secretary of the Navy | George von L. Meyer (1909–1913) |
| Secretary of War | Jacob M. Dickinson (1909–1911) |
| Secretary of War | Henry L. Stimson (1911–1913) |