The objective of the study was to assess human wildlife conflict in Katerniaghat Wildlife Sanctuary. The sanctuary encompasses an area of 400 sq.km. Situated in Bahraich district of Uttar Pradesh. There are hundred and one villages present at the periphery and six in core area of sanctuary. Primary data was collected from 302 households randomly selected from 28 villages accounting 10% sampling on the basis of highest human and livestock population. Secondary data was collected from forest and revenue department. Human casualty (48.6%) is the most frequent conflict and is primarily of the injuring (76%) instead of killing by the top predators inside the sanctuary. Livestock depredation is on buffalo and goat (33%) in and around the sanctuary. The secondary data showed yearly decline in livestock depredation by the predators inside the sanctuary. Crop raiding is mostly on sugarcane and wheat by the wild herbivores. Nilgai is the primary crop raider damaging the agricultural field around the sanctuary. Cropfield protection is mostly done by planting vegetation and application of fire crackers as a repellent strategy for wild herbivores raiders from damaging the farm. Distance from the sanctuary plays a linear relationship with the crop raiding damage and incidents of livestock depredation. The present study concludes that illegal human activities like forest resource collection and livestock grazing escalate conflict issues inside the sanctuary. Therefore; check on illegal human activities, trenching at the sanctuary boundary, increase in compensation grant, local people participation in wildlife conservation and protected area management is needed.