Chainpur may refer to:

India Chainpur, Kaimur, Bihar Chainpur Assembly constituency, Kaimur, Bihar Chainpur, Saharsa, Bihar Chainpur subdivision, Gumla district, South Chotanagpur division, Jharkhand Chainpur block, Gumla Chainpur, Gumla, a village Chainpur block, Palamu, Jharkhand

Nepal Chainpur, Chitwan, Khairhani Municipality Chainpur, Bajhang, Jaya Prithvi Municipality Chainpur, Dhading Chainpur Municipality, Sankhuwasabha District, Koshi Province

See also Chainpura, Bharatpura, Jaipur district, Rajasthan