Rubén Díaz is a Puerto Rican politician from New York City and an ordained Pentecostal minister. He represented the 18th district of the New York City Council from 2018 to 2021. A member of the Democratic Party, Díaz represented the 32nd district in the New York State Senate from 2003 to 2017; his Senate district included parts of the Bronx neighborhoods of Castle Hill, Parkchester, Morrisania, Hunts Point, Melrose, Longwood, and Soundview.

Rubén Díaz Jr. is an American politician who served as the 13th borough president of The Bronx in New York City from 2009 to 2021. He was elected in April 2009 and reelected in 2013 and 2017. He previously served in the New York State Assembly.