Abstract: Catheter for intrauterine insemination, which is useful in artificial insemination in different animal species and, thus, it is preferably useful for intrauterine insemination of pigs. The catheter (1) for intrauterine insemination is defined by a unitary element comprised of an elongated tube-shaped body (2) provided in one of its ends, the end to be introduced in the reproductive system of the animal, with a rounded surface body (3) provided with a hole (4) as an extension of the axial hole (5) of the tube-shaped body (2).