The Cedar Rapids River Kings are a professional indoor football team based in Cedar Rapids, Iowa. They are current members of American Indoor Football and play their homes at the Alliant Energy PowerHouse. The River Kings joined the Indoor Football League (IFL) as an expansion team in 2011 known as the Cedar Rapids Titans and first took the field for the 2012 season.
Since 2014, the Titans/River Kings franchise has played its home games at the newly renovated Alliant Energy PowerHouse, after having played their first two seasons at the Cedar Rapids Ice Arena. The Titans were the first indoor team to be based in Cedar Rapids. The Titans have appeared in two United Conference championship games (2013, 2014).
During the 2018 season, the Titans were sold to new ownership and announced that they would rebrand for 2019 with a name-the-team contest eventually taking on the Cedar Rapids River Kings name. The River Kings returned in 2024 as members of the revived AIF.