Rafael "Tatito" Hernández Montañez is a Puerto Rican politician affiliated with the Popular Democratic Party (PPD). He is also a Democrat. He has been a member of the Puerto Rico House of Representatives since 2009, representing District 11, which includes the town of Dorado and parts of the towns of Vega Alta and Vega Baja. In the 2020 elections he was re-elected and chosen as speaker of the house in 2021.

The Popular Democratic Party is a political party in Puerto Rico that advocates to continue as a Commonwealth of the United States with self-governance. The party was founded in 1938 by dissidents from the Puerto Rican Liberal Party and the Unionist Party and originally promoted policies on the center-left. In recent years, however, its leaders have described the party as centrist.