Ramón Maximiliano Valdés Arce (13 October 1867 in Penonomé, Coclé - 3 June 1918 in Panama City) was President of Panama from October 1, 1916 to June 3, 1918. He belonged to the Liberal Party.
| Preceded by Belisario Porras |
President of Panama 1916–1918 |
Succeeded by Ciro Luis Urriola |