Maurice Joseph Sullivan (December 7, 1884 – August 9, 1953) was an American politician.

He learned the retail business with the San Francisco firm of Holbrook, Merrill & Stratton.

He eventually became the principal owner of the Wood-Sullivan Hardware Company and was an investor in several mining ventures.

He studied law, was admitted to the bar in 1923 and commenced practice in Carson City.

After leaving Congress Sullivan resumed practicing law in Reno.