Burr may refer to:Things Burr (fruit), a type of seed or fruit with short, stiff bristles or hooks The Burr distribution, a continuous probability distribution A burr (metal), a deformation of metal wherein a raised edge forms on a metal part which has been machined Burr wood, a deformed type of wood in which the grain has been misformed A burr (cutter), a small cutter used in rotary tools for metalworking A burr puzzle, a type of interlocking mechanical puzzle Burr (novel), a book about… (More on Burr)