The present study was undertaken to assess the prevalence of gastrointestinal parasites in herbivores animals of Barnawapara Wildlife Sanctuary, Chhattisgarh. Four free range herbivores animal species namely- Gaur, Nilgai, Sambar, Chital and one captive Black buck species were selected for study. A total of 150 faecal samples having 30 samples from each animal species were collected and observed with direct, sedimentation and floatation method during summer, rainy and winter season. The overall prevalence was 56.0%. Seasonal prevalence was reported rainy (70%), winter (50.0%) and summer (48%). Among all species studied Sambar showed highest prevalence rate 70% of GI parasites followed by Gaur (63.33%), Chital (56.66%), Nilgai (50.0%) and Black buck (43.33%). During the study, an overall prevalence of Strongyle sp. 28.66%, Amphistome sp. 26.0%, Fasciola sp. 11.33% and Trichuris sp. 6.0% recorded. In winter season, the prevalence of Strongyle sp. was relatively higher than Amphistome sp., while the reverse was recorded in rainy season. Strongyle sp. was highest prevalence among Gaur, Nilgai, Chital and Black buck, and in contrary Sambar record Amphistome sp as dominated parasite.