WThe 2003 ASEAN Para Games, officially known as the 2nd ASEAN Para Games, was a Southeast Asian disabled multi-sport event held eight days after the 2003 Southeast Asian Games in Hanoi, Vietnam from 21 to 27 December 2003. This was the first time Vietnam hosted the ASEAN Para Games and the first time East Timor participated at the ASEAN Para Games.
WThe 2003 Afro-Asian Games, officially known as the First Afro-Asian Games or I Afro-Asian Games and unofficially known as the Inaugural Afro-Asian Games, was a major international multi-sport event held in Hyderabad, India, from October 24 to November 1, 2003.
WThe 8th All Africa Games were 5–17 October 2003 in Abuja, Nigeria. 53 countries participated in 23 sports. The main venue was the newly constructed Abuja Stadium. The organizing committee was headed by Nigerian Amos Adamu.
WThe 2003 European Youth Summer Olympic Festival was the seventh edition of multi-sport event for European youths between the ages of 12 and 18. It was held in Paris, France from 27 July to 3 August, with the opening and closing ceremonies at the Charléty Stadium. A total of ten sports were contested, featuring around 2000 athletes from 48 nations.
WThe 2003 FESPIC Youth Games, officially known as the 1st, Final and Only FESPIC Youth Games, was an Asia Pacific youth disabled multi-sport event held in Hong Kong, China from 23 to 27 September 2003. Around 314 athletes from 15 participating nations participated at the games which featured 5 sports.
WThe 2003 Island Games were the tenth Island Games, and were held in Guernsey, from June 28 to July 4, 2003.
WThe 2003 Military World Games was an international multi-sport event for military personnel which was held in Catania, Italy from 4–11 December 2003. It was the third edition of the Military World Games, competition organised by the Conseil International du Sport Militaire. A total of 84 nations were represented at the event, with some 2800 military servicemen and women competing in the tournament. The games opening ceremony took place at the Stadio Angelo Massimino in front of 5000 spectators.
WThe 14th Pan American Games were held in Santo Domingo, Dominican Republic, from August 1 to 17, 2003. The successful bid for the games was made in the mid-1990s, when Dominican Republic had one of the highest growth rates in Latin America.
WThe 2003 Parapan American Games, officially the II Pan American Games, were a major international multi-sport event for athletes with disabilities, celebrated in the tradition of the Parapan American Games as governed by the Americas Paralympic Committee in Mar del Plata, Argentina. Over 1,500 athletes from 28 countries competed in the games. The games served as a qualifier for the 2004 Summer Paralympics. For the second time, the Parapan American Games were held in the same year but at a different location than the Pan American Games; however, the games were initially supposed to be held in the Dominican Republic, but they were unable to host them. This was the last year that the two events would be held in different cities, as the 2007 Parapan American Games and 2007 Pan American Games were both held in Rio de Janeiro.
WThe 2003 South Pacific Games were held in Suva, Fiji from 28 June to 12 July 2003. They are also known as the XII South Pacific Games.
WThe 2003 Southeast Asian Games, officially known as the 22nd Southeast Asian Games, was a Southeast Asian multi-sport event held in Hanoi, Vietnam. This was the first time for Vietnam to host the Southeast Asian Games and the first time for East Timor, a non-ASEAN member, participated at the Southeast Asian Games.
WThe 2003 Summer Universiade, also known as the XXII Summer Universiade, took place in Daegu, South Korea.