2003 Campeonato Ecuatoriano de Fútbol Serie A
| Season | 2003 |
|---|---|
| Champions | LDU Quito (7th title) |
| Relegated | Técnico Universitario Manta |
| Copa Libertadores | LDU Quito Barcelona El Nacional |
| Top goalscorer | Ariel Graziani (23 goals) |
← 2002 2004 → | |
The 2003 Campeonato Ecuatoriano de Fútbol de la Serie A (known as the 2003 Copa Pílsener Serie A for sponsorship reasons) was the 46th season of the Serie A, the top level of professional football in Ecuador. LDU Quito won its seventh national championship.