Renzo Stacchi is an Italian voice actor, dubbing director, and actor, born in Rome on October 8, 1944. His career is primarily defined by his extensive work in dubbing, where he has lent his voice to numerous characters in animation and live-action productions for the Italian market.

Stacchi's voice acting portfolio includes a wide array of anime and animated series. He is known for providing the Italian voice for Haran Banjo in the mecha anime series Muteki Kōjin Daitarn 3. His other notable anime roles include Taka in Ryu, il ragazzo delle caverne, the father of Bia in Bia, la sfida della magia, Sadon in UFO Robot Goldrake, and Amaso in Jeeg robot d'acciaio. He has also contributed his voice to various animated films and series, such as the narrator in La Freccia Azzurra, Abis Mal in the Aladdin sequels and series, and Skipper in Planes.

Beyond animation, Stacchi has been the regular Italian dubbing voice for prominent Hollywood actors including Bill Murray, Danny Glover, and Tommy Lee Jones in many of their films. He has also appeared as an actor in Italian television series such as Distretto di Polizia and Don Matteo.

A significant part of Stacchi's career involves his work as a dubbing director. He has directed the Italian dubbing for numerous major productions, particularly for Disney. His directing credits include films like Aladdin, The Lion King, and Space Jam, as well as television series such as the Mediaset edition of The Addams Family. For several years, he also served as the artistic director for the dubbing company Angriservices Edizioni.