Flak-Bait is the Martin B-26 Marauder aircraft which holds the record within the United States Army Air Forces for the number of bombing missions survived during World War II.

Manufactured in Baltimore, Maryland, as a B-26B-25-MA, by Martin, it was completed in April 1943, accepted by the United States Army Air Forces, and christened Flak-Bait by its first assigned pilot, James J. Farrell, who adapted the nickname of a family dog, "Flea Bait".

[4] On March 18, 1946, Major John Egan and Captain Norman Schloesser flew Flak-Bait for the last time, to an air depot at Oberpfaffenhofen, Bavaria.

There, the famed bomber was disassembled, crated, and shipped in December 1946 to a Douglas Aircraft factory in Park Ridge, Illinois.

In 2014, all parts of Flak-Bait were moved to the Mary Baker Engen Restoration Hangar at the Steven F. Udvar-Hazy Center in Chantilly, Virginia, for a comprehensive preservation and reassembly, which is ongoing as of early 2025.