Seaside Pirates Masters are a masters swimming club located in the suburb of North Narrabeen, in the Sydney region of New South Wales.

The club trains at Terrey Hills Swim School pool and Warringah Aquatic Centre on Tuesdays 7.30-8.30pm (Warringah), Thursdays 7.30-8.30pm (Terrey Hills), and Sundays 8.00-9.30am (Terrey Hills).