| Country: | the United States |
| Soccer: | yes |
| Season: | 1978 |
| Prevseason: | 1977 |
| Nextseason: | 1979 |
| Flagicon: | yes |
The 1978 season was the 66th season of competitive soccer in the United States.
| width=30 | Club | width=30 | width=30 | width=30 | width=30 | width=30 | width=30 | width=30 | width=250 | Qualification | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 30 | 24 | 6 | 88 | 39 | +49 | 212 | 1978 NASL Playoffs | ||||||||||
| 2 | 30 | 16 | 14 | 55 | 47 | +8 | 145 |
See main article: 1978 National Challenge Cup.