The 1955 season was the 35th season of the Primera División de Costa Rica , the highest Costa Rican soccer league. Ten teams took part. Heredia won the championship for the 14th time in the club's history. The championship did not end until 1956.
The Copa Reina del Canadá 1955 , which was played before the start of the season, Heredia won 1-0 in the final against Alajuela.
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