Chiloquin is a city in Klamath County, Oregon, United States. Chiloquin was the pioneer version of a Klamath family name Chaloquin, which was the name of a Klamath chief who was alive at the time of the treaty of 1864. Southern Pacific records also show that a woman named Bessie Chiloquin deeded a right-of-way through the area to the railroad on February 14, 1914. The population was 734 at the 2010 census.

Klamath County is one of the 36 counties in the U.S. state of Oregon. As of the 2020 census, the population was 69,413. The county seat is Klamath Falls. The county was named for the Klamath, the tribe of Native Americans living in the area at the time the first European explorers entered the region. Klamath County comprises the Klamath Falls, OR Micropolitan Statistical Area.