1966 Cleveland Browns season Regular season schedule Regular season schedule

| Week | Date_ | Opponent | Result_ | Attendance |
|---|---|---|---|---|
| 11 | November 20, 1966 | Washington Redskins | W 14–3 | 78466 |
| 12 | November 24, 1966 | at Dallas Cowboys | L 26–14 | 75504 |
| 13 | December 4, 1966 | New York Giants | W 49–40 | 61651 |
| 14 | December 11, 1966 | at Philadelphia Eagles | L 33–21 | 58074 |
| 15 | December 17, 1966 | at St. Louis Cardinals | W 38–10 | 47721 |