1972 Prix de l'Arc de Triomphe

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The 1972 Prix de l'Arc de Triomphe was a horse race held at Longchamp on Sunday 8 October 1972. It was the 51st running of the Prix de l'Arc de Triomphe.

The winner was Margit Batthyany's San San, an American-bred three-year-old filly trained in France by Angel Penna Sr. and ridden by Freddy Head. San San was the first filly to win the race since La Sorellina in 1953. Head had previously won the race on Bon Mot in 1966 whilst Batthyany and Penna were winning the race for the first time.