1) A barehead regular jack with an extra-long bolster. It is usually a less expensive knife, with plain handles but can occasionally be found with premium handles such as stag or pearl. The common barlow knife is about 3 3/8″ long but “daddy” barlows and “grandaddy” barlows can be five inches long. 2) The name of a 17th and 18th century family of cutlers from Sheffield, England, credited with developing the pattern. 3) Currently the name of a Japanese manufacturer of inexpensive, all-metal, promotional knives.