Paul Steven Haigh (born 5 September 1957) is an Australian convicted serial killer currently serving six sentences of life imprisonment without the possibility of parole for the murder of six people in the late 1970s. He also murdered a fellow inmate in 1991. Haigh has claimed that he suffers from Borderline Personality Disorder and thus deserved a lighter sentence, but this is an unsubstantiated claim. An appeal was rejected on 13 December 2012.