Nong Han Kumphawapi (Thai: หนองหานกุมภวาปี, pronounced [nɔ̌ːŋ hǎːn kumpʰawaːpiː], often just Nong Han) is a lake in northeast Thailand, north of the town of Kumphawapi, Kumphawapi District, Udon Thani Province.

The lake is shallow, mostly not exceeding a depth of one meter. The open water area of 1.7 km² is surrounded by a wetland covering 4.1 km², including paddy fields.

In 2001 the lake was proposed as a wetland of international importance by the Thai government.