Thomas Frederick Outridge Brimage (23 July 1866 – 25 May 1915) was an Australian businessman and politician who served as a member of the Legislative Council of Western Australia from 1900 to 1912.

He moved to Port Pirie, South Australia, as a small child, where his father became the harbour master.

After leaving school, Brimage completed an engineering apprenticeship with South Australian Railways, and was then employed as a mechanical draughtsman.

Brimage entered parliament at the 1900 Legislative Council election, winning a six-year term as one of three members for the new South Province.

After leaving politics, Brimage worked as a hotelkeeper, living for periods in Kojonup, Katanning, Northam, and Narrogin.