The International 2.4mR is a one-person keelboat. The class is a development class governed by the 2.4mR rule. The rule controlled by World Sailing is one of the few classes designated as an International Class. The International 2.4mR Class rule is closely related to the International 12mR class rule that was used at the America's Cup.

Sailing was an official part of the Summer Paralympic Games between 2000 and 2016, after being a demonstration sport in 1996. The International Association for Disabled Sailing was responsible for coordinating the event with the International Paralympic Committee and the hosts.