Granma is the yacht that was used to transport the fighters of the Cuban Revolution from Mexico to Cuba in 1956 for the purpose of overthrowing the regime of Fulgencio Batista. The 60-foot (18-meter) diesel-powered cabin cruiser was built in 1943 and designed to accommodate 12 people. It is said to have been named for the original owner's grandmother.
The yacht was purchased on 10 October 1956 for the amount of MX$50,000 (US$15,000) from the U.S.-based Schuylkill Products Company, Inc. by a Mexican citizen secretly representing Fidel Castro. Castro's 26th of July Movement had attempted to purchase a Catalina flying boat or a US naval crash boat for the purpose of crossing the Gulf of Mexico to Cuba, but had been thwarted by lack of funds. The money to purchase the Granma had been raised in Florida by former President of Cuba Carlos Prío Socarrás.
Shortly after midnight on 25 November 1956 in the Mexican port of Tuxpan, Veracruz, the Granma was surreptitiously boarded by 82 members of the 26th of July Movement including their leader, Fidel Castro, his brother, Raúl Castro, Che Guevara and Camilo Cienfuegos. The group — who later came to be known collectively as los expedicionarios del yate Granma — set out from Tuxpan at 1 a.m. and, after a series of vicissitudes and misadventures, including the near foundering of their heavily overladen and leaking craft, disembarked on the shores of what is now Granma Province on 2 December. The location was chosen to emulate the voyage of Cuban hero José Martí, who had landed in the same region 61 years earlier during the wars of independence from Spanish colonial rule.