Walthill is a village in Thurston County, Nebraska, United States, within the Omaha Reservation. The population was 909 at the 2000 census.
Walthill is located at 42°8′55″N 96°29′26″W / 42.14861°N 96.49056°W / 42.14861; -96.49056 (42.148744, -96.490434). It is located within the Omaha Reservation.
According to the United States Census Bureau, the village has a total area of 0.4 square miles (1.1 km²), all of it land.