United States House of Representatives elections, 1946 Illinois Illinois

| District | Incumbent | Party | First_elected | Result_ | Candidates |
|---|---|---|---|---|---|
| Illinois 3 | Edward A. Kelly | Democratic | 1944 | Lost re-election Republican gain | Fred E. Busbey (R) 57.2% Edward A. Kelly (D) 42.8% |
| Illinois 4 | Martin Gorski | Democratic | 1942 | Re-elected | Martin Gorski (D) 70.7% John T. Parsons (R) 29.3% |
| Illinois 13 | Leo E. Allen | Republican | 1932 | Re-elected | Leo E. Allen (R) 77.8% Michael M. Kinney (D) 22.2% |
| Illinois 17 | Leslie C. Arends | Republican | 1934 | Re-elected | Leslie C. Arends (R) 71.2% Carl Vrooman (D) 28.8% |
| Illinois 18 | Jessie Sumner | Republican | 1938 | Retired Republican hold | Edward H. Jenison (R) 65.1% C. E. Spang (D) 34.9% |