1966 National Soccer League season
| Season | 1966 |
|---|---|
| Champions |
|
← 1965 1967 → | |
The 1966 National Soccer League season was the forty-third season under the National Soccer League (NSL) name. The season began in late May and concluded in late October with Windsor Teutonia claiming their first NSL Championship against Toronto Croatia. The regular-season title was secured by Sudbury Italia by finishing first throughout the regular season.
The ownership of Stanley Park Stadium was transferred back to the city of Toronto as the league accumulated a heavy debt, and failed to make the necessary payments to retain the ownership. After the conclusion of the 1966 season, the Eastern Canada Professional Soccer League (ECPSL) merged with the National Soccer League.