Irja Aav (née Irja Pilvet; May 12, 1944 Tallinn – August 6, 1995 Tallinn) was an Estonian actress. In 1964 she graduated from Estonian Drama Theatre's stage studio. Since 1965 she worked at Estonian Drama Theatre. Besides theatrical roles she played also on several films. From 1965 until 1974 she was married to Estonian actor Tõnu Aav. The couple had two sons, music producer and conductor Lauri Aav and prop maker Ardi Aav.