United States House of Representatives elections, 1966 Texas Texas

| District | Incumbent | Party | First_elected | Result_ | Candidates |
|---|---|---|---|---|---|
| Texas 17 | Omar Burleson | Democratic | 1946 | Re-elected | Omar Burleson (D) Unopposed |
| Texas 18 | Walter E. Rogers | Democratic | 1950 | Retired Republican gain | Bob Price (R) 59.5% Dee Miller (D) 40.5% |
| Texas 19 | George H. Mahon | Democratic | 1934 | Re-elected | George H. Mahon (D) Unopposed |
| Texas 21 | O. C. Fisher | Democratic | 1942 | Re-elected | O. C. Fisher (D) Unopposed |