USS Omaha (LCS-12) is an Independence-class littoral combat ship of the United States Navy.

The vessel's keel was laid down on 18 February 2015 at the Austal USA shipyard in Mobile, Alabama and launched on 20 November.

In 2002, the United States Navy initiated a program to develop the first of a fleet of littoral combat ships.

[4] On 29 December 2010, the Navy announced that it was awarding Austal USA a contract to build ten additional Independence-class littoral combat ships.

[11] On 15 July 2019 alleged multiple UFOs were tracked on the ship's radar while training off the coast of San Diego.