Top-rated United States television programs of 1965–66
# Top-rated United States television programs of 1965–66

This table displays the top-rated primetime television series of the 1965–66 season as measured by Nielsen Media Research.

| Rank | Program | Network | Rating |
| - | - | - | - |
| 1 | Bonanza | NBC | 31.8 |
| 2 | Gomer Pyle, U.S.M.C. | CBS | 27.8 |
| 3 | The Lucy Show | CBS | 27.7 |
| 4 | The Red Skelton Hour | CBS | 27.6 |
| 5 | Batman (Thurs.) | ABC | 27.0 |
| 6 | The Andy Griffith Show | CBS | 26.9 |
| 7 | Bewitched | ABC | 25.9 |
| 7 | The Beverly Hillbillies | CBS | 25.9 |
| 9 | Hogan's Heroes | CBS | 24.9 |
| 10 | Batman (Wed.) | ABC | 24.7 |
| 11 | Green Acres | CBS | 24.6 |
| 12 | Get Smart | NBC | 24.5 |
| 13 | The Man from U.N.C.L.E. | NBC | 24.0 |
| 14 | Daktari | CBS | 23.9 |
| 15 | My Three Sons | CBS | 23.8 |
| 16 | The Dick Van Dyke Show | CBS | 23.6 |
| 17 | Walt Disney's Wonderful World of Color | NBC | 23.2 |
| 17 | The Ed Sullivan Show | CBS | 23.2 |
| 19 | The Lawrence Welk Show | ABC | 22.4 |
| 19 | I've Got a Secret | CBS | 22.4 |
| 21 | Petticoat Junction | CBS | 22.3 |
| 22 | Gilligan's Island | CBS | 22.1 |
| 23 | The Wild Wild West | CBS | 22.0 |
| 23 | The Jackie Gleason Show | CBS | 22.0 |
| 23 | The Virginian | NBC | 22.0 |
| 26 | Daniel Boone | NBC | 21.9 |
| 27 | Lassie | CBS | 21.8 |
| 27 | I Dream of Jeannie | NBC | 21.8 |
| 29 | Flipper | NBC | 21.6 |
| 30 | Gunsmoke | CBS | 21.3 |
