Cutco Corporation, formerly Alcas Corporation, is an American company that sells knives, predominantly through direct sales or single-level marketing. It is the parent company of CUTCO Cutlery Corp., Vector Marketing, Ka-Bar Knives, and Schilling Forge. Its primary brand is named Cutco.

Ka-Bar 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, and subsequently adopted by the United States Navy as the U.S. Navy utility knife, Mark 2. Ka-Bar is the name of a related knife manufacturing company, Ka-Bar Knives., Inc., of Olean, New York, a subsidiary of the Cutco Corporation.