Liga ASOBAL 2002–03 season was the 13th since its establishment. A total of 16 teams competed this season for the championship.
This season, the competition was played in a round-robin format, through 30 rounds. The team with most points earned wins the championship. The last two teams were relegated.
| Team | P | W | D | L | G+ | G- | Dif | Pts | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Barcelona | 30 | 26 | 2 | 2 | 960 | 745 | 215 | 54 |
| 2 | Ciudad Real | 30 | 25 | 0 | 5 | 896 | 694 | 202 | 50 |
| 3 | Caja España Ademar León | 30 | 23 | 3 | 4 | 895 | 750 | 145 | 49 |
| 4 | Portland San Antonio | 30 | 22 | 3 | 5 | 868 | 762 | 106 | 47 |
| 5 | Valladolid | 30 | 16 | 5 | 9 | 888 | 815 | 73 | 37 |
| 6 | Altea | 30 | 14 | 4 | 12 | 775 | 761 | 14 | 32 |
| 7 | Cantabria | 30 | 13 | 4 | 13 | 759 | 751 | 8 | 30 |
| 8 | Valencia | 30 | 15 | 0 | 15 | 792 | 841 | –49 | 30 |
| 9 | KH-7 Granollers | 30 | 11 | 6 | 13 | 821 | 816 | 5 | 28 |
| 10 | Gáldar | 30 | 10 | 5 | 15 | 769 | 784 | –15 | 25 |
| 11 | Teucro ENCE | 30 | 7 | 7 | 16 | 766 | 875 | –109 | 21 |
| 12 | Frigorificos Morrazo | 30 | 6 | 8 | 16 | 710 | 841 | –131 | 20 |
| 13 | Bidasoa | 30 | 5 | 9 | 16 | 721 | 771 | –50 | 19 |
| 14 | Barakaldo UPV | 30 | 5 | 6 | 19 | 751 | 888 | –137 | 16 |
| 15 | Alcobendas | 30 | 7 | 2 | 21 | 674 | 770 | –96 | 16 |
| 16 | Torrevieja | 30 | 3 | 0 | 27 | 733 | 914 | –181 | 6 |
| EHF Champions League | |
| EHF Cup Winners' Cup | |
| EHF Cup | |
| relegated |
| 2002–03 Liga ASOBAL winners |
|---|
Barcelona Eighth title |
| Player | Goals | Team |
|---|---|---|
| Enric Masip | 151 | Barcelona |
|
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