Renz Marion Aluquin Fernandez (born September 8, 1985) is a Filipino actor. He is the son of Rudy Fernandez and Lorna Tolentino and stepgrandson of film director Gregorio Fernandez. He is a contract star of ABS-CBN's Star Magic, but in 2013 he starred in the GMA television series Prinsesa ng Buhay Ko as Luis Grande. He worked with his half-brother Mark Anthony Fernandez (whom he played younger version of character) for their father's film Matimbang Pa sa Dugo (1995) and Magpakailanman episode Lubog sa putik is based on 2009 Quezon floods.
In June 2024, Fernandez married Jef Gaitan at Las Casas Filipinas de Acuzar with wedding sponsors Senator Grace Poe, Senator Lito Lapid and Manny Pacquiao, and they had a son who was born in 2025.