Margareta Ann-Christine Bärnsten (born 10 July 1957), is a Swedish singer and writer, who has written several detective stories.
As a student Bärnsten attended the Adolf Fredrik's Music School, a high profile song-and-chorus school in Stockholm.
As a singer, she has participated at Melodifestivalen 1975 with the song Ska vi plocka körsbär i min trädgård, which ended up 5th.