An epidemiological study was performed with the aim to elucidate the prevalence of gastrointestinal nematodes in equines of Bajaur and Mohmand Agencies in North-Western Pa istan from September 2013 to May 2014. The fecal samples from one thousand equines, comprising horses (n= 83), don eys (n= 715), and mules (n= 202) were collected and processed for identification of nematode parasites using floatation and sedimentation methods. Results revealed that 72% samples were positive for certain nematode parasites. Overall, 43.74% of the positive samples had mixed infection. The predominant nematode species identified included Trichostrongylous axei (19.81%), Dictyocaulus arnfieldi