Two ships of the Royal Fleet Auxiliary have borne the name RFA Olwen:
- RFA Olwen was an oiler launched in 1917 as RFA British Light. She was renamed RFA Olwen in 1937 and was sold in 1947.
- RFA Olwen (A122) was an oiler launched in 1964 as RFA Olynthus. She was renamed RFA Olwen in 1967 and was sold in 2001.
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.