| Event Name: | Second presidential inauguration of William McKinley |
| Organizers: | Joint Congressional Committee on Inaugural Ceremonies |
| Participants: | William McKinley 25th president of the United States — Assuming office Melville Fuller Chief Justice of the United States — Administering oath Theodore Roosevelt 25th vice president of the United States — Assuming office William P. Frye President pro tempore of the United States Senate — Administering oath |
The second inauguration of William McKinley as president of the United States was held on Monday, March 4, 1901, at the East Portico of the United States Capitol in Washington, D.C. This was the 29th inauguration and marked the commencement of the second and final term of William McKinley as president and the only term of Theodore Roosevelt as vice president. McKinley was assassinated days into this term, and Roosevelt succeeded to the presidency.
Chief Justice Melville Fuller administered the oath of office. This was the first inauguration to take place in the 20th century. This was also the first inauguration to be arranged by the Joint Committee on Inaugural Ceremonies and organized by both the House of Representatives and the Senate.[1]