United States House of Representatives elections, 1966 Texas Texas

| District | Incumbent | Party | First_elected | Result_ | Candidates |
|---|---|---|---|---|---|
| Texas 1 | Wright Patman | Democratic | 1928 | Re-elected | Wright Patman (D) Unopposed |
| Texas 2 | John Dowdy Redistricted from 7th | Democratic | 1952 | Re-elected | John Dowdy (D) Unopposed |
| Texas 3 | Joe R. Pool Redistricted from at-large | Democratic | 1962 | Re-elected | Joe R. Pool (D) 53.4% Bill Hayes (R) 46.6% |
| Texas 4 | Ray Roberts | Democratic | 1962 | Re-elected | Ray Roberts (D) Unopposed |
| Texas 4 | Lindley Beckworth Redistricted from 3rd | Democratic | 1956 | Lost renomination Democratic loss | Ray Roberts (D) Unopposed |
| Texas 5 | Earle Cabell | Democratic | 1964 | Re-elected | Earle Cabell (D) 61.0% Duke Burgess (R) 39.0% |