Birgitta Maria Cecilia Nilsson (born 15 July 1957) is a Swedish actress.

Nilsson started acting in theatre aged six at Vår teater at Medborgarplatsen in Stockholm.

[2] Her first theater appearance was in the play Woyzeck at the Royal Dramatic Theatre in 1968, and she also appeared in Minns du den stad (directed by Per Anders Fogelström) at Stockholm City Theatre in 1970–1971.

In 1989 Nilsson received the Vilhelm Moberg-Award of Teaterförbundet, and in 2007 the Riksteatern Scholarship.

In 2012 she received a Guldbagge Award for her appearance in the 2011 film Simon and the Oaks.