Kati Outinen (born August 17, 1961 in Helsinki) is a Finnish actress who has often played leading female roles in Aki Kaurismäki's films. Having studied under Jouko Turkka during his "reign" of drama studies in Finland, she nevertheless has never been associated with the "turkkalaisuus" school of acting methodology. Her breakthrough role was as a tough girl in the generational classic youth film Täältä tullaan elämä by Matti Kassila.
Besides a strong domestic reputation gained through a widely varied list of roles in theater and television drama, film director Aki Kaurismäki's films have brought Kati Outinen international attention and even adulation, particularly in Germany and France.