USS Nitro may refer to the following ships of the United States Navy:
- USS Nitro (AE-2), a Pyro-class ammunition ship launched in 1919 and sold for scrap in 1949
- USS Nitro (AE-23), lead ship of the Nitro class of ammunition ship; launched in 1958 and struck in 1995
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.