Udayapur may refer to:Udayapur, Banke, a Village Development Committee in the Banke District of Lumbini Province, Nepal Udayapur, Kapilvastu, a village in Kapilvastu District of Lumbini Province, Nepal Udayapur District, a district in Koshi Province, Nepal Udaypur Dhursi, a village development committee in the Parsa District of Madhesh Province, Nepal Udaypur, Kalna, a village in Kalna II CD Block, Kalna subdivision, Bardhaman district, West Bengal, India Udaypur, Madhya Pradesh, a village in the Vidisha district of Madhya Pradesh, India Udaypur, Nayagarh, a village in Nayagarh district, Odisha, India Udaypur Wildlife Sanctuary, a wildlife sanctuary in the West Champaran district of Bihar state, India