Peter John Philip Vivian (born 5 November 1970) is a retired English hammer thrower.
Vivian represented England and won a bronze medal, at the 1994 Commonwealth Games in Victoria, Canada.
He also competed at the 1995 World Championships without reaching the final.
Vivian became the British hammer throw champion after winning the British AAA Championships title at the 1994 AAA Championships.
His personal best throw was 71.28 metres, achieved in June 1995 in Villeneuve d'Ascq.