The World Fellowship of Buddhists (WFB)is arguably the largest and most influential international Buddhist organization. It was founded in 1950 in Colombo, Sri Lanka by representatives from 27 nations. Although Theravada Buddhists are most influential in the organization, (its headquarters are in Thailand and all of its presidents have been from Sri Lanka or southeast Asia), members of all Buddhist schools are active in the WFB. It now has regional centers in 35 countries, including India, the United States, Australia, and nations of Africa and Europe, in addition to traditional Buddhist countries.

The current president is Phan Wannamethee of Thailand.