Gustave Ador (December 23, 1845 - March 31, 1928) was a Swiss politician.

He was elected to the Federal Council of Switzerland on June 26, 1917 and handed over office on December 31, 1919. He was affiliated to the Liberal Party.

During his office time he held the following departments:

• Political Department (1917)
• Department of Home Affairs (1918 - 1919)

He was President of the Confederation in 1919.