The Popular Socialist Youth is founded in Cuba.

The Popular Socialist Youth was a youth organization in Cuba, the youth wing of the Popular Socialist Party. Raúl Valdés Vivó was the general secretary of the organization. By 1960, the organization was estimated to have around 13,000 members. Raúl Castro was a member of the organization for some time.

Cuba, officially the Republic of Cuba, is an island country in the Caribbean, comprising the island of Cuba, Isla de la Juventud, and 4,195 islands, islets and cays surrounding the main island. It is located where the northern Caribbean Sea, Gulf of Mexico, and Atlantic Ocean meet. Cuba is located east of the Yucatán Peninsula (Mexico), south of both Florida and the Bahamas, west of Hispaniola, and north of Jamaica and the Cayman Islands. Havana is the largest city and capital. Cuba is the third-most populous country in the Caribbean after Haiti and the Dominican Republic, with about 10 million inhabitants. It is the largest country in the Caribbean by area.