| 2003 PBA season | |
|---|---|
 | |
| Duration | February 23 – December 14, 2003 |
| Number of teams | 10 |
| TV partner(s) | Local: NBN, IBC International: The Filipino Channel |
| 2003 PBA Draft | |
| Top draft pick | Mike Cortez |
| Picked by | Alaska Aces |
| Season MVP | Asi Taulava (Talk 'N Text Phone Pals) |
| All-Filipino Cup champions | Talk 'N Text Phone Pals |
| All-Filipino Cup runners-up | Coca Cola Tigers |
| Invitational Cup champions | Alaska Aces |
| Invitational Cup runners-up | Coca Cola Tigers |
| Reinforced Conference champions | Coca-Cola Tigers |
| Reinforced Conference runners-up | San Miguel Beermen |
Preview warning: Page using Template:Infobox sports season with unknown parameter "year"
The 2003 PBA season was the 29th season of the Philippine Basketball Association (PBA).