HMS Tracker (BACV-6/D24) was an Attacker-class escort carrier that was built in the United States, but served in the Royal Navy during World War II.

[4] Tracker was laid down 3 November 1941, under a Maritime Commission (MARCOM) contract, MC hull 233, by Seattle-Tacoma Shipbuilding in Tacoma, Washington.

She was originally intended to be the 2nd replacement merchant ship Mormacmail for Moore-McCormack Lines, Inc., however, before completion, the vessel was purchased by the US Navy.

In April 1944, her aircraft, together with those from HMS Activity were responsible for the sinking of the German U-boat U-288 east of Bear Island, during convoy JW 58.

On 10 June 1944, while part of the antisubmarine screen of the Western Approaches Command for the D-Day landings, she collided with a River-class frigate of the Royal Canadian Navy, HMCS Teme, causing damage to both ships.