David Ivar Swanson (September 14, 1884 β April 8, 1950) was an Illinois state representative (Republican Party).
He served as Representative from the 53rd through the 66th General Assemblies, except for the 60th and 64th legislative sessions.
He was Chairman of the Committee on Judiciary for the 54thβ57th, 62ndβ63rd and 65th Assemblies.
During the 1945 session Swanson was Legal Adviser to the Speaker of the House in Springfield, and during 65th session was Republican House caucus chairman, and member of the Policy Committee.