The 2003 Pan American Games, officially known as the XIV Pan American Games, were a continental multi-sport event held in Santo Domingo, Dominican Republic, from August 1 to August 17, 2003.

[1] At the Games, 5,500 athletes selected from 42 National Olympic Committees (NOCs) participated in events in 35 sports.

The ranking in this table is based on medal counts published by several media organizations.

By default, the table is ordered by the number of gold medals won by the athletes representing a nation.

If nations are still tied, equal ranking is given and they are listed alphabetically by IOC country code.