United States House of Representatives elections, 1940 Mississippi Mississippi

| District | Incumbent | Party | First_elected | Result_ | Candidates |
|---|---|---|---|---|---|
| Mississippi 1 | John E. Rankin | Democratic | 1920 | Re-elected | John E. Rankin (D) Unopposed |
| Mississippi 2 | Wall Doxey | Democratic | 1928 | Re-elected | Wall Doxey (D) Unopposed |
| Mississippi 3 | William Madison Whittington | Democratic | 1924 | Re-elected | William Madison Whittington (D) Unopposed |
| Mississippi 4 | Aaron L. Ford | Democratic | 1934 | Re-elected | Aaron L. Ford (D) Unopposed |
| Mississippi 5 | Ross A. Collins | Democratic | 1936 | Re-elected | Ross A. Collins (D) Unopposed |
| Mississippi 6 | William M. Colmer | Democratic | 1932 | Re-elected | William M. Colmer (D) Unopposed |