Tomas Birger von Brömssen is a Swedish actor.
He played leading roles in Albert & Herbert, My Life as a Dog, Dykaren, Mannen från Mallorca and Sofies verden.
Together with Lars-Eric Brossner, he wrote the 2003 play The Story of the Little Gentleman, based on Barbro Lindgren's book The Story of the Little Old Man.
He was first married to Eva von Brömssen from 1966 to 2000. He remarried on 21 November 2004 to the scientist Dorte Velling Pedersen, close friend to his first wife Eva. They currently reside in Frölunda, outside Gothenburg.
Povel Ramel awarded him the Karamelodiktstipendiet prize for Best Male TV Personality in 1986.