Mariana Nogales Molinelli (born October 26, 1973) is a Puerto Rican lawyer, politician, and social activist.

She had previously ran as the Working People's Party of Puerto Rico's candidate for resident commissioner in the 2016 election; she received over 19,000 votes, and ended up in 4th place.

In 2010 Mariana Nogales Molinelli earned a juris doctor from the University of Puerto Rico School of Law.

[8] At the funeral service for Carlos Romero Barceló Nogales wore a t-shirt protesting the Cerro Maravilla murders that occurred under the governor's tenure.

[11] Nogales was the author of the House of Representatives resolution 213, created to investigate the cutting of trees around the island in an attempt to reduce deforestation.