Maria Katarina Öhrn or Maria Katarina Berlin (1756 – 8 November 1783 in Stockholm) was a Swedish stage actress and singer. She was active at the Stenborg Troupe in Humlegårdsteatern from 1776–80 and in in 1780–83. During her career, she was one of the most popular stars on the Swedish stage as the female star of the Stenborg theatre, at that time the leading dramatic stage, prior to the founding of the Royal Dramatic Theatre.