The line cutter suitable for fitting to the body of a fishing rod is made as a single piece obtained by cutting out and stamping a metal plate. It comprises firstly a main body with a front portion, a rear portion, and two side portions, and secondly two longitudinal prongs extending the side portions of the main body rearwards. The plate is cut out and stamped in such a manner that, when the line cutter is mounted on the body of the fishing rod, the longitudinal prongs and at least the front portion of the main body are in contact with the body of the fishing rod, the rear portion of the main body being raised so as to allow the line to be pass thereunder, and in such a manner that between the rear portion of the main body and the longitudinal prongs, a cutout in the shape of an acute angle on one side defines a cutting zone, while on the other side there is provided a jamming zone for jamming the fishing line. The line cutter is secured to the body of the fishing rod by binding the longitudinal prongs to said body.