Aeronautical pentathlon is a sporting event at some multi-sport events, such as the Military World Games.
USD Bosna, a Bosnian Sport organization and multisport club
Carrasco Polo Club is a multisport Uruguayan club, from the Carrasco neighbourhood of Montevideo, best known for their rugby team.
Montevideo Cricket Club, another multisport club, formerly based in Carrasco.
Steve Gurney: Steve Gurney is a New Zealand multisport and triathlon athlete famous for winning the "Coast to Coast" event a record 9 times.
Club Nacional de Regatas El Mbiguá (most commonly known as "Club Mbiguá") is a multisport club based in Asunción, Paraguay.
The Naval pentathlon is a multisport which is practiced only by military athletes at the World Military Championships and Military World Games, both events organized by the international federation that governs military sport, the Conseil International du Sport Militaire.
It is the rugby union branch of the multisport club S.S. Lazio, probably the biggest European multisport organization, which operates also the famous association football team with the same name.