Two ships of the United States Navy have been named Firm:
- USS Firm (AM-98), was redesignated PC-1602 on 1 June 1944
- USS Firm (AM-444), was launched 15 April 1953 and later redesignated MSO-444
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.