Paul David O'Sullivan (born 6 December 1959) is a New Zealand Thoroughbred racehorse trainer.
O'Sullivan trained in partnership with his father, Dave O’Sullivan, for 17 years in New Zealand, and was the champion trainer in New Zealand on 11 occasions. He is the brother of New Zealand premiership-winning jockey Lance O'Sullivan.[citation needed]
O'Sullivan moved to Hong Kong to train in 2004. In 2010/11, O'Sullivan brought up his double century of winners in Hong Kong. In 2022, he finished there with 516 wins and total earnings of HK$525,837,109.[1]
