| Year: | 2003 |
| Tour: | Tour de las Américas |
| Regular Season: | – |
| No Of Events: | 12 |
| Most Wins: |  Andrés Romero (2) |
| Honor1: | Order of Merit |
| Honoree1: | Eduardo Argiró |
| Prevseason: | 2001–02 |
| Nextseason: | 2004 |
The 2003 Tour de las Américas, titled as the 2003 American Express Tour de las Américas for sponsorship reasons, was the 12th season of the Tour de las Américas (formerly the South American Tour), the main professional golf tour in Latin America since it was formed in 1991.
In May, it was announced that the tour had signed a title sponsorship agreement with American Express, being renamed as the American Express Tour de las Américas.[1]
The following table lists official events during the 2003 season.[2]
| Date | Tournament | Host country | Purse (US$) | Winner | OWGR points | Other tours | |
|---|---|---|---|---|---|---|---|
| 11 Jan | Bahamas | 50,000 | Rafael Gómez (1) | n/a | |||
| 18 Jan | Panama | 200,000 |  Charles Warren (1) | n/a | |||
| 26 Jan | Panama | 40,000 | Andrés Romero (1) | n/a | |||
| 2 Feb | Costa Rica | 100,000 | Sebastián Fernández (2) | 6 | CHA | ||
| 9 Feb | Guatemala | 100,000 | Daniel Vancsik (1) | 6 | CHA | ||
| 16 Feb | Mexico | 100,000 | James Hepworth (n/a) | 6 | CHA | ||
| 25 May | Mexico | 50,000 |  José Octavio González (1) | n/a | |||
| 16 Nov | Colombia | 50,000 |  Ángel Romero (2) | n/a | |||
| 23 Nov | Colombia | 50,000 | Andrés Romero (2) | n/a | |||
| 30 Nov | Brazil | 100,000 | Carlos Franco (5) | n/a | |||
| 14 Dec | Mexico | 300,000 | Eduardo Herrera (1) | n/a |
The following events were sanctioned by the Tour de las Américas, but did not carry official money, nor were wins official.
The Order of Merit was based on prize money won during the season, calculated in U.S. dollars.[3]
| Position | Player | Prize money ($) | |
|---|---|---|---|
| 1 | 48,174 | ||
| 2 | 36,221 | ||
| 3 | 27,456 | ||
| 4 | 26,146 | ||
| 5 | 24,800 |