The Corn Bowl Conference was a high school athletic conference based in north central Iowa. The conference is made up of 1A and 2A schools, the two smallest classification of schools in Iowa.
Beginning in 2015–16, the Corn Bowl Conference and the North Iowa Conference will merge into the Top of Iowa Conference. There will be two divisions. The Top of Iowa - East will include Osage, Mason City Newman, West Fork, North Butler, Central Springs, Northwood-Kensett, Rockford, Nashua-Plainfield, and Saint Ansgar. The Top of Iowa - West will include Eagle Grove, Belmond-Klemme, Garner-Hayfield-Ventura, Forest City, West Hancock, Lake Mills, North Iowa, Algona Bishop Garrigan, and North Union. Riceville will join the Iowa Star Conference that same year. Clarion-Goldfield-Dows has also been involved in talks with the North Iowa Conference but has not acted on changing conference affiliation.