William Sulzer, American lawyer and politician, 39th Governor of New York (d. 1941)
William Sulzer (March 18, 1863 – November 6, 1941) was an American lawyer and politician, nicknamed Plain Bill Sulzer. He was the 39th Governor of New York and a long-serving congressman from the same state.

Sulzer was the first, and to date only, New York governor to be impeached and the only governor to be convicted on articles of impeachment. He broke with his sponsors at Tammany Hall, and they produced convincing evidence that Sulzer had falsified his sworn statement of campaign expenditures.