USS Eldridge (DE-173), a Cannon-class destroyer escort, was a ship of the United States Navy named for Lieutenant Commander John Eldridge Jr., who led an operation for the invasion of the Solomon Islands.

The Cannon class was a class of destroyer escorts built by the United States primarily for antisubmarine warfare and convoy escort service during World War II. The lead ship, USS Cannon, was commissioned on 26 September 1943 at Wilmington, Delaware. Of the 116 ships ordered, 44 were cancelled and six were commissioned directly into the Free French Forces. Destroyer escorts were regular companions escorting vulnerable cargo ships.