- Katarniaghat Wildlife Sanctuary is located in the Bahraich district of Uttar Pradesh, India.
- It lies in the Terai region near India-Nepal border.
- It is situated in the Upper Gangetic plain.
- In 1975, the sanctuary was established under the Wildlife Protection Act of 1972.
- In 1987, Dudhwa National Park and the Kishanpur Wildlife Sanctuary was together declared a tiger reserve.
- In 2000, the Katarniaghat Wildlife Sanctuary was added in Dudhwa Tiger Reserve.
- Area: Katarniaghat Wildlife Sanctuary covers an approximate area of 400 square kilometers (150 square miles).
- Buffer area: 150.03 sq.km.
- Total area: 551.02 sq.km.
- River: Girwa River flow through the Katarniaghat Wildlife Sanctuary.
- Tribe: One of the prominent tribal groups in the region is the Tharu community.
- Flora: Sal Forests, Teak Forests, Grasslands, Swamps and Wetlands etc.
- Fauna: Tiger, Indian Rhinoceros, Swamp Deer (Barasingha), Asian Elephant, Leopard, Sloth Bear, Spotted Deer, Sambar Deer, Gangetic Dolphin, Bengal Florican, Sarus Crane, White-rumped Vulture, Gharial, Mugger Crocodiles, Sandboa etc.
- Katarniaghat Wildlife Sanctuary is known for being home to the Gangetic Dolphin (Platanista gangetica). Girwa river provides suitable habitat for these dolphins to thrive.
- Katarniaghat Wildlife Sanctuary is known for its populations of Gharial (Gavialis gangeticus) and Mugger crocodiles (Crocodylus palustris).