Wallowa is a city in Wallowa County, Oregon, United States. The population was 869 at the 2000 census.
Wallowa was platted in 1889. Wallowa is a Nez Perce word describing a triangular structure of stakes that in turn supported a network of sticks called lacallas to form a fish trap. The Nez Perce put these traps in the Wallowa River below the outlet of Wallowa Lake. The author of Oregon Geographic Names, Lewis A. McArthur, said that although the origin of this name is disputed, he puts great weight in Levi Ankeny who supplied this information as he was "thoroughly familiar with the early history and tradition of the Wallowa Valley" and "on intimate terms with many Indians who knew the facts of the matter".
According to the United States Census Bureau, the city has a total area of 0.6 square miles (1.6 km²), all of it land.