Irja Koskinen was born on July 28, 1911 in Helsinki, Finland as Irja Elvira Koskinen. She is known for her work on Kaksi Vihtoria (1939), Niskavuori taistelee (1957) and Jean Sibelius (1945). She was married to Klaus Salin. She died on March 31, 1978 in Helsinki.