Patricia Margaret Crossin (born 21 March 1956) is a former Australian politician, who served as a Senator for the Northern Territory from June 1998 to September 2013, representing the Australian Labor Party. Crossin was born in Melbourne and was educated at Deakin University, where she graduated in education. She worked as a teacher, and was an industrial officer of the National Tertiary Education Union between 1996 and 1998. Crossin is married to Mark Crossin, and has four children.