Nine ships and a naval base of the Royal Navy have been named HMS Neptune after the Roman god of the ocean:
HMS Neptune (1683) was a 90-gun second rate launched in 1683. She was rebuilt in 1710 and 1730 before being renamed HMS Torbay in her new incarnation as a third rate in 1750. She was sold in 1784.
HMS Neptune (1757) was a 90-gun second rate launched in 1757. She was hulked in 1784 and broken up in 1816.
HMS Neptune was to have been a 120-gun first rate. She was renamed HMS Royal George (1827) in 1822, before being launched in 1827. Royal George was sold in 1875.
HMS Neptune (1832) was a 120-gun first rate launched in 1832. She was rebuilt as a 72-gun third rate with screw propulsion in 1859 and was sold in 1875.
