Objective: to determine the frequency of presentation of clinical parasitic otitis due to rhabditiform nematode (Rhabditis sp) in six Gyr breed cattle farms in Cordoba, Colombia. Methods: a descriptive prospective study in animals of convenience, between June and October 2010 was performed. Cerumen samples were collected using sterile swabs from the external ear canals of 155 animals. Results: the frequency of occurrence of Rhabditis sp presenting clinical otitis in six Gyr breed farms in Cordoba was 63.2%. Conclusion: clinical manifestations and characteristics of the cerumen as well as microscopic observation of the parasites, reported a high number of Rhabditis sp causing clinical parasitic otitis in 6 Gyr cattle farms in the province of Cordoba, Colombia.