Ragnhildur Óskarsdóttir (October 31, 1940 – March 13, 1996), better known by her pseudonym Roska, was an Icelandic artist, film director, communist, and feminist. She studied fine arts and film directing in Prague and Rome, Italy, where she lived for most of her life. One of her trademarks was her bright red lips, which appear in many of her films.