League president: Bill Boytchuk
The league again became an inter-provincial league for the 1964 season with the addition of two clubs in Montreal. Both Montreal Cantalia and Montreal Ukraina joined from the Eastern Canada Professional Soccer League.
A soccer war started in Montreal when Cantalia and Ukraina decided to schedule their games to clash head-on with those of Montreal FC in the ECPSL. Also the name Cantalia had been used by the ECPSL team the previous season.
Newly formed Toronto club Polonia joined the league.
Referees included Joe Temis (Montreal, Quebec), Bill Betts (Montreal, Quebec) and Stan Tait.
Review of the season
Toronto Ukraina won the league championship.
On Monday October 12 Toronto Ukraina won the championship final by beating Abruzzi 4-1. This was the second year in row that they won the NSL championship.
Results and standings