| 1966 USA Outdoor Track and Field Championships | |
| Host City: | New York City, New York Frederick, Maryland United States |
| Dates: | June 25–26 |
| Stadium: | Downing Stadium, Randalls Island |
| Previous: | 1965 |
| Next: | 1967 |
The 1966 USA Outdoor Track and Field Championships men's competition took place between June 25–26 at Downing Stadium on Randalls Island in New York City, New York. The women's division held their championships separately in Frederick, Maryland. Both venues were dirt tracks.
The Marathon championships were run in October at the Yonkers Marathon for the final time after being designated the National Championships 18 times in succession.
Jim Ryun was the star of the show, running the first four minute mile in the northeastern United States.
| 100 yards | 9.4 | 9.4 | 9.5 | ||||
| 220 yards | 20.5w | 20.5w | 20.6w | ||||
| 440 yards | 45.9 | 46.2 | 46.3 | ||||
| 880 yards | 1.47.6 | 1.48.0 | 1.48.8 | ||||
| 1 Mile | 3.58.6 | 4.00.0 | 4.00.6 | ||||
| 3 miles | 13.27.4 | 13.27.4 | 13.28.4 | ||||
| 6 miles | 28.02.0 | 28.34.2 | 28.52.6 29.06.4 | ||||
| Marathon | 2.22.50.8 | 2.26.14.0 | 2.28.47.0 | ||||
| 120 yard hurdles | 13.44 | 13.61 | 13.88 | ||||
| 440 y hurdles | 50.26 | 50.30 | 50.44 | ||||
| 3000 meters steeplechase | 8.40.6 CRm | 8.43.4 | 8.47.6 | ||||
| 2 mile racewalk | 13:52.7 | 14:07.7 | 14:29.8 |
| High jump | =CR | =CR | |||||
| Pole vault | =CR | ||||||
| Long jump | |||||||
| CR | |||||||
| Shot put | |||||||
| Discus Throw | |||||||
| Hammer Throw | |||||||
| Javelin Throw | |||||||
| Decathlon | 8234 WR* | 8130 | 7520 |
| 100 yards | 10.5 | 10.8 | 10.9 | ||||
| 220 yards | 23.8 | 23.9 | 24.0 | ||||
| 400 meters | 53.4 | 55.7 | 55.7 | ||||
| 800 meters | 2.05.0 | 2.06.2 | 2.10.9 | ||||
| 1500 meters | 4.20.2 | 4.36.6 | 4.37.3 | ||||
| 80 meters hurdles | 10.7 | 11.0 | 11.1 |
| High jump | |||||||
| Long jump | |||||||
| Shot put | |||||||
| Discus Throw | |||||||
| Javelin Throw | |||||||
| Pentathlon | 4496 | 4384 | 4366 |