Two ships of the Royal Navy have borne the name HMS Tenacious:
- HMS Tenacious (1917) was an R-class destroyer launched in 1917 and sold in 1928.
- HMS Tenacious (R45) was a T-class destroyer launched in 1943. She was converted into a Type 16 frigate between 1951 and 1952 and was scrapped in 1965.
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.