1966 Denver Broncos season Regular season Regular season

| Week | Date_ | Opponent | Result_ | Game_site | Record | Attendance |
|---|---|---|---|---|---|---|
| 1 | September 3, 1966 | at Houston Oilers | L 7–45 | Rice Stadium | 0–1 | 30156 |
| 3 | September 18, 1966 | Boston Patriots | L 10–24 | Bears Stadium | 0–2 | 25337 |
| 4 | September 25, 1966 | New York Jets | L 7–16 | Bears Stadium | 0–3 | 29878 |
| 5 | October 2, 1966 | Houston Oilers | W 40–38 | Bears Stadium | 1–3 | 27203 |
| 6 | October 8, 1966 | at Kansas City Chiefs | L 10–37 | Municipal Stadium | 1–4 | 33929 |
| 7 | October 16, 1966 | at Miami Dolphins | L 7–24 | Miami Orange Bowl | 1–5 | 23393 |
| 8 | October 23, 1966 | Kansas City Chiefs | L 10–56 | Bears Stadium | 1–6 | 26196 |