HMS Prince William (1780) was a 64-gun third rate previously the Spanish ship Guispuscoano. She was captured in 1780, converted to a sheer hulk in 1791 and was broken up in 1816.
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.