Birgitta Maria Cecilia Nilsson is a Swedish actress. She has appeared at many theatres. She is married to Krister Henriksson. Nilsson started playing theatre at age of 6 at Vår Teater at Medborgarplatsen in Stockholm. As a student she attended the Adolf Fredrik's Music School in Stockholm. 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. 1973–74 she hosted the children's program Fredax, and after that she hosted Lördags 1974–75. 1978–81 she studied at the Swedish National Academy of Mime and Acting. After the education she was engaged at Helsingborg City Theatre. 1983–88 she worked at Stockholm City Theatre. 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.