Ronwaldo Pacheco Nacianceno, known professionally as Ronwaldo Martin, is a Filipino film and television actor. He is the brother of Coco Martin.
He won the Best Actor trophy at the Harlem International Film Festival for his portrayal in Pamilya Ordinaryo.
He has also appeared in the TV drama Batang Quiapo, which stars and is directed by his elder brother Coco Martin.