| Competition: | Campeonato Ecuatoriano de Fútbol |
| Season: | 1975 |
| Winners: | LDU Quito (3rd title) |
| League Topscorer: | Ángel Liciardi (36 goals)[1] |
| Continentalcup1: | Copa Libertadores |
| Continentalcup1 Qualifiers: | LDU Quito Deportivo Cuenca |
| Biggest Home Win: | Deportivo Cuenca 6 - 0 LDU Portoviejo |
| Highest Scoring: | Emelec 7 - 2 LDU Portoviejo |
| Prevseason: | 1974 |
| Nextseason: | 1976 |
The 1975 Campeonato Ecuatoriano de Fútbol de la Serie A was the 17th national championship for football teams in Ecuador. LDU Quito successfully defended their title for their third overall.
The number of teams for this season was expanded from eight to twelve. There would be no mid-season replacements.
| Club | City | |
|---|---|---|
| Guayaquil | ||
| Quito | ||
| Quito | ||
| Guayaquil | ||
| Machala | ||
| Cuenca | ||
| Quito | ||
| Quito | ||
| Guayaquil | ||
| Portoviejo | ||
| Quito | ||
| Quito |