José Julián Martí Pérez (January 28, 1853 – May 19, 1895) was a Cuban national hero and an important figure in Latin American literature. In his short life he was a poet, an essayist, a journalist, a revolutionary philosopher, a translator, a professor, a publisher, and a political theorist. Through his writings and political activity, he became a symbol for Cuba's bid for independence against Spain in the 19th century, and is referred to as the "Apostle of Cuban Independence." He also fought against the threat of United States expansionism into Cuba. From adolescence, he dedicated his life to the promotion of liberty, political independence for Cuba and intellectual independence for all Spanish Americans; his death was used as a cry for Cuban independence from Spain by both the Cuban revolutionaries and those Cubans previously reluctant to start a revolt.

Born in Havana, Martí began his political activism at an early age. He would travel extensively in Spain, Latin America, and the United States raising awareness and support for the cause of Cuban independence. His unification of the Cuban émigré community, particularly in Florida, was crucial to the success of the Cuban War of Independence against Spain. He was a key figure in the planning and execution of this war, as well as the designer of the Cuban Revolutionary Party and its ideology. He died in military action on May 19, 1895.

Martí is considered one of the great turn-of-the-century Latin American intellectuals. His written works consist of a series of poems, essays, letters, lectures, a novel, and even a children's magazine. He wrote for numerous Latin American and American newspapers; he also founded a number of newspapers himself. His newspaper Patria was a key instrument in his campaign for Cuban independence. After his death, one of his poems from the book, "Versos Sencillos" (Simple Verses) was adapted to the song, "Guantanamera", which has become the definitive patriotic song of Cuba.