An optical fiber holder (1, 30) for holding a coated optical fiber of an optical fiber cord, the optical fiber cord also including high strength fibers and a cord jacket, the optical fiber holder (1, 30) comprising: a holder main body including a fiber receiving groove to receive the coated optical fiber exposed out of the optical fiber cord from which the cord jacket is removed at a tip thereof; a cord holding base including a first cord receiving groove to receive the cord jacket of the optical fiber cord; a cord holding cover that is attached to the holder main body in an openable and closable manner and includes a second receiving groove that cooperates with the first cord receiving groove to form an insertion through hole into which the optical fiber cord is inserted; and a fiber pressing cover that is attached to the holder main body in an openable and closable manner and is arranged to press the coated optical fiber received in the fiber receiving groove against the holder main body, wherein the insertion through hole is shaped and dimensioned such that the high strength fibers of the optical fiber cord being inserted into the insertion through hole, the high strength fibers being exposed along with the coated optical fiber, come into contact with inner wall surfaces of the cord holding base and the cord holding cover, which form the insertion through hole, characterised in that the fiber receiving groove has a V-like cross-sectional shape, the first cord receiving groove has a semicircular cross-sectional shape, and the holder main body further comprises a cord introducing groove having a semicircular cross-sectional shape whose radius is greater than that of the cord receiving groove. a holder main body including a fiber receiving groove to receive the coated optical fiber exposed out of the optical fiber cord from which the cord jacket is removed at a tip thereof; a cord holding base including a first cord receiving groove to receive the cord jacket of the optical fiber cord; a cord holding cover that is attached to the holder main body in an openable and closable manner and includes a second receiving groove that cooperates with the first cord receiving groove to form an insertion through hole into which the optical fiber cord is inserted; and a fiber pressing cover that is attached to the holder main body in an openable and closable manner and is arranged to press the coated optical fiber received in the fiber receiving groove against the holder main body, wherein the insertion through hole is shaped and dimensioned such that the high strength fibers of the optical fiber cord being inserted into the insertion through hole, the high strength fibers being exposed along with the coated optical fiber, come into contact with inner wall surfaces of the cord holding base and the cord holding cover, which form the insertion through hole, characterised in that the fiber receiving groove has a V-like cross-sectional shape, the first cord receiving groove has a semicircular cross-sectional shape, and the holder main body further comprises a cord introducing groove having a semicircular cross-sectional shape whose radius is greater than that of the cord receiving groove. characterised in that the fiber receiving groove has a V-like cross-sectional shape, the first cord receiving groove has a semicircular cross-sectional shape, and the holder main body further comprises a cord introducing groove having a semicircular cross-sectional shape whose radius is greater than that of the cord receiving groove.