Swedish classical violinist, born January 30, 1978.

As a sixteen-year-old, Trobäck began studying at the Gothenburg Academy of Music for Tibor Fülep and then continued at the Royal Academy of Music in London for György Pauk. She became alternating first concertmaster in Göteborgs Symfoniker in 2002 and has been the first concertmaster there since 2009. She has been a member of the Royal Academy of Music since 2008. Together with cellist Claes Gunnarsson and pianist Per Lundberg, she is part of the Gothenburg-based piano trio Trio Poseidon.

She received Sten A Olsson's cultural scholarship in 2003.