The 1974–75 Primera División de Fútbol Profesional season is the th tournament of El Salvador's Primera División since its establishment of the National League system in 1948.
The tournament began on 17 March 1974 and finished on 29 December 1974.
Platense secured the club first Primera División title after defeating Negocios Internacionales in three-game series; they became the second club to win the first division in their very first appearance .
On 2 March, 1974 The directors of Juventud Olimpica sold their spot in the primera division to C.D.
(player released mid season) (player Injured mid season) Injury replacement player LA Firpo Municipal Limeno Negocios Internacionels Platense Sonsonate