This research was conducted to determine the prevalence of Eimeria spp. and Cryptosporidium spp. oocysts in camel in khorasan province in the eastern of Iran. Faecal samples of 306 dromedaries (Camelus dromedarius) in abattoir of Mashhad, a city in northeast Iran and the capital of khorasan province between October 2007 and September 2008 analyzed for Cryptosporidium oocysts by microscopic examination of smears stained by modified Ziehl -Neelsen technique. The parasite was detected in 6 camels (1.9%). The same samples were examined by saturated solution of sodium chloride flotation technique for Eimeria oocysts. During the laboratory examination of faecal samples, Eimeria spp. oocysts were identified in 57 (18.62%) of the dromedaries examined. Eimeria dromedarii was the most prevalent and Eimeria cameli the least. This is the first report of cryptosporidiosis in dromedary camel (Camelus dromedarius) in Iran. The mucosae of the ileum, caecum and colon were edematous, congested and ulcerated. Histopathological examination of the ileum revealed distended, disorganized villi and crypts due to developmental stages of Eimeria, and moderate to severe inflammatory reaction mainly by infiltration of eosinophils and lymphocytes

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