Two ships of the Royal Navy have borne the name HMS Arachne:
- HMS Arachne (1809), a Cruizer-class brig-sloop launched in 1809 and sold in 1837
- HMS Arachne (1847), a sloop launched in 1847 and broken up in 1866
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.