The Town of Iliff is a Statutory Town located in Logan County, Colorado, United States. The population was 213 at the 2000 census. The town's name is shared with the 2300 South block in the Denver-Aurora metropolitan area street system; Iliff Avenue is a major traffic artery in Aurora and has an interchange with I-225.
The town was named for John Wesley Iliff, a cattleman.
Iliff is located at 40°45′32″N 103°03′57″W / 40.758911°N 103.065841°W / 40.758911; -103.065841.