Omak is the largest city in Okanogan County, Washington, United States. The population was 4,845 at the 2010 census. It is just south of the Canadian border where more populated cities are located (Kelowna, Penticton, and Kamloops).
It has a small commuter airport (KOMK) with one paved runway of 4,667 ft (1,423 m) in length.
The town of Omak was platted in 1907, and officially incorporated on February 11, 1911. Shortly after being formed, the city of Omak waged a battle trying to get the county seat to be located there, but it lost to the nearby community of Okanogan.