Ovis aries (Sheep) is one of the earliest animals domesticated by man. They are distributed worldwide with higher concentrations in tropical areas and in dry zones. The study was aimed to determine the prevalence of gastrointestinal parasites of Ovis aries (Sheep) in Kano Main Abattoir, Kano State, Northern Nigeria. A total of 230 fecal samples were collected from male and female sheep brought to the Abattoir for slaughter from January through July, 2023. Flotation technique was employed for the detection/isolation of gastrointestinal parasites eggs in the fecal samples using microscope. The result indicated six parasites ova from different genera in the samples examined. These include; Strongyloides sp, Haemonchus sp, Trichuris sp, Eimeria sp, Monieza sp and Entamoeba sp. Haemonchus sp. was the most prevalent parasite encountered 34 (26.8%), followed by Strongyloides sp 23 (18.1%), Eimeria sp 22 (17.3%), Trichuris sp 21 (16.1%) while Entamoeba sp 16 (12.6%) and Moniezia sp was the least prevalent 11 (8.7%). It was also found that female sheep are more susceptible to gastrointestinal parasite than male counterpart. Similarly, more parasites are found among adult sheep than younger ones. Statistical analysis of the result showed no significant difference in the prevalence of gastrointestinal among different categories of sheep examined at p<0.05.