Massimo De Ambrosis is an Italian actor and voice actor, born in Rome on July 14, 1964. He began his career in 1974 and is the son of actor Luciano De Ambrosis. He has worked extensively in dubbing, providing the Italian voice for numerous international actors including Edward Norton, Matthew Perry, Steve Carell, and Owen Wilson.

De Ambrosis has lent his voice to a wide array of characters in animated series and films. In the anime and animation sphere, his roles include Calculon in Futurama, Terrance in South Park, and Spike Spiegel in Cowboy Bebop: The Movie. He has a notable history with the Getter Robo franchise, voicing the character Hayato Jin in several series, including Change!! Shin Getter Robo - L'ultimo giorno del mondo and Getter Robo Arc. His other prominent anime roles include Nicholas D. Wolfwood in Trigun: Badlands Rumble, Kenshiro in New Fist of the North Star, Haran Banjo in the redubbing of Muteki Kōjin Daitarn 3, Kazuya Mishima in Tekken: The Motion Picture, and Heinz Baker in the Memories segment Magnetic Rose.

He has also contributed to more recent animated films, such as playing the character Justin in the Italian dub of Mamoru Hosoda's BELLE. In 2004, his work was recognized with the "Premio Voce maschile - Cartoni animati" (Best Male Voice - Cartoons) at the Gran Galà del Doppiaggio. He is married to dubbing assistant Elena Masini, and his two children, Daniele and Luca, have also followed careers in dubbing.