These are the squads for the countries that played in the 1977 CONCACAF Championship.

The age listed for each player is on 8 October 1977, the first day of the tournament. The numbers of caps and goals listed for each player do not include any matches played after the start of the tournament. The club listed is the club for which the player last played a competitive match before the tournament. The nationality for each club reflects the national association (not the league) to which the club is affiliated. A flag is included for coaches who are of a different nationality than their own national team.

For the first time, more than half of the countries had players representing foreign clubs with Canada (10), El Salvador (2), Guatemala (1) and Haiti (3).

Canada Head coach: Eckhard Krautzun

El Salvador Head coach: Juan Ricardo Faccio

Guatemala Head Coach:

Haiti Head coach: Sepp Piontek

Mexico Head coach: José Antonio Roca

Suriname Head coach: Walther Braithwaite

References