KA-BAR (trademarked as KA-BAR, capitalized) is the contemporary popular name for the combat knife first adopted by the United States Marine Corps in November 1942 as the 1219C2 Combat Knife (later designated the USMC Mark 2 Combat Knife or Knife, Fighting Utility), and subsequently adopted by the United States Navy as the U.S. Navy Utility Knife, Mark 2. Additionally, KA-BAR is the trademark and namesake of a related knife manufacturing company, KA-BAR Cutlery Co., Inc. (formerly Union Cutlery Co.) of Olean, New York, a subsidiary of the Cutco Corporation.
Although KA-BAR Cutlery, Inc. currently makes a wide variety of knives and cutlery, it is best known for the KA-BAR Fighting Utility Knife, which has traditionally used a 7 in. (178 mm) 1095carbon steelclip point blade and leather-washer handle. Other, more modern versions of this knife feature single or dual-edge blades and synthetic handles made of Kraton (a non-slip rubber substitute).