Freamunde started when cardinalAntónio Filipe watched a group of children playing in the streets of Freamunde, and decided to start a club, arranging for kits gratuitously. It was first called Freamunde Sport Clube.
Another clergyman, Padre Castro, was the main responsible for the club's early professional foundations. In 1933, the team started playing matches in a field owned by him, the Campo do Carvalhal. Two years later, the club started competing in Liga Invicta – known in later years as the second division – doning the colours which would last for the following decades: blue shirt and socks and white shorts. The league folded however two years later, and the team started playing in Campeonato da Promoção, after joining Porto's Football Association.
In 1944, Freamunde's first status were outlined – five years later, Castro died. In 1999, after two consecutive promotions, the club first reached the new second level, lasting two seasons, and returning again for the 2007–08 campaign after being crowned champions of the third division (Northern Zone); during the early 1990s and the 2000s, Jorge Regadas served as team manager for several seasons.