| Club: | FC Porto |
| Season: | 2002–03 |
| Chrtitle: | President |
| Chairman: | Jorge Nuno Pinto da Costa |
| Mgrtitle: | Head coach |
| Manager: | José Mourinho |
| Stadium: | Estádio das Antas |
| League: | Primeira Liga |
| League Result: | 1st |
| Cup1: | Taça de Portugal |
| Cup1 Result: | Winners |
| Cup2: | UEFA Cup |
| Cup2 Result: | Winners |
| League Topscorer: | Hélder Postiga (13) |
| Season Topscorer: | Hélder Postiga (18) |
| Pattern La1: | _fcporto0203h |
| Pattern B1: | _fcporto0203h |
| Pattern Ra1: | _fcporto0203h |
| Pattern Sh1: | _fcporto0203h |
| Pattern So1: | _fcporto0304h |
| Leftarm1: | 0000FF |
| Body1: | 0000FF |
| Rightarm1: | 0000FF |
| Shorts1: | 0000FF |
| Socks1: | 0000FF |
| Alt1: | Home |
| Pattern La2: | _fcporto0203a |
| Pattern B2: | _fcporto0203a |
| Pattern Ra2: | _fcporto0203a |
| Pattern Sh2: | _fcporto0203a |
| Pattern So2: | _fcporto0203a |
| Alt2: | Away |
| Prevseason: | 2001–02 |
| Nextseason: | 2003–04 |
The 2002–03 season was the 118th season in the existence of FC Porto and the club's 88th consecutive season in the top flight of Portuguese football. In addition to the domestic league, Porto participated in this season's editions of the Taça de Portugal and the UEFA Cup.[1]
Squad at end of season[2]
See main article: 2002–03 Primeira Liga.
See main article: 2002–03 Taça de Portugal.
See main article: 2002–03 UEFA Cup.