Marvin R. Weatherwax Jr. is an American politician and a member of the Democratic Party. He represents District 15 in the Montana House of Representatives.

Personal Life: Weatherwax holds an associate’s degree in computer science from Blackfeet Community College. He resides in Browning, Montana.

Political Career: He assumed office on January 7, 2019. His current term ends on January 6, 2025. In 2018, former District 15 Representative George Kipp III did not run for re-election, and Weatherwax ran for the seat. He was unopposed in both the Democratic primary and the general election. He won re-election on November 8, 2022.

Committee Assignments: As of June 2020, Weatherwax sits on the following committees: Fish, Wildlife, and Parks; Natural Resources; State Administration.