HMS Port Mahon has been the name of several ships of the British Royal Navy, and may refer to:
- , a 20-gun sixth rate launched in 1711 and scrapped in 1740
- , a 24-gun sixth rate launched in 1740 and sold in 1763
- , an 18-gun brig-sloop captured on the stocks in 1798, launched in 1798, hulked in 1817, and sold in 1837.
References