Julio Vizcarrondo Coronado [note 1] (December 9, 1829 – 1889) was a Puerto Rican abolitionist, journalist, politician and religious leader.

[1] Upon his return to Puerto Rico, Vizcarrondo began to write for a local newspaper, where he expressed his liberal ideas and his position against slavery.

The Spanish government considered his remarks as treacherous, and the appointed governor of the island, Lieutenant General Juan de la Pezuela y Cevallos (1848–1851), ordered his exile to the United States.

[1] In 1850, Vizcarrondo arrived in New York City and joined the "International Conference of Paris against Slavery" as Secretary of the Permanent Committee of said organization.

[citation needed] As president of the Central Committee of the Spanish Evangelical Union, he attempted and failed to establish a Protestant church in Madrid.

[4] Despite this setback, on January 24, 1869 he was able to convince the mayor of Madrid to grant the members of the Protestant faith permission to hold their religious services in public.

[6] In 1873, Vizcarrondo – together with Ramon Baldorioty de Castro, Luis Padial and the Minister of Overseas Affairs, Segismundo Moret – presented a proposal for the abolition of slavery in Puerto Rico and Cuba.

[1][2] On May 1, 1880, Vizcarrondo and Rafael María de Labra became the founders of the Sociedad Nacional Democrática (National Democratic Society), a political party whose main goal was to obtain more autonomy for both Puerto Rico and Cuba.