Six ships of the Royal Navy have borne the name HMS Avon. Avon comes from a Brythonic word meaning "river".

• HMS Avon (1805) was an 18-gun Cruizer-class brig-sloop launched in 1805. In 1814 she was sunk in action with the American Wasp in the English Channel.
• HMS Avon (1837) was a 2-gun wooden paddle package ship transferred from the GPO to the Royal Navy in 1837. From 1843 she was used as a survey ship and she was sold in 1863.
• HMS Avon (1862) was a 2-gun wooden paddle gunboat purchased in 1862. She was used in the New Zealand Wars and was sold in 1865 as a coal hulk. She later became the civilian vessel Clyde.
• HMS Avon (1867) was a 4-gun composite screw gun vessel launched in 1867. She was sold in 1890.
• HMS Avon (1896) was a destroyer launched in 1896. She was sold in 1920.
• HMS Avon (K97) was a River-class frigate launched in 1943. She was handed over to the Portuguese Navy in 1949 where she was renamed Nuno Tristao. She was broken up in 1970.

• Colledge, J. J.; Warlow, Ben (2006) [1969]. Ships of the Royal Navy: The Complete Record of all Fighting Ships of the Royal Navy (Rev. ed.). London: Chatham Publishing. ISBN 978-1-86176-281-8.

List of ships with the same or similar names

This article includes a list of ships with the same or similar names. If an internal link for a specific ship led you here, you may wish to change the link to point directly to the intended ship article, if one exists.