Juan José Campanella (born 19 July 1959) is an Argentine television and film director, writer and producer.

In 1999, Campanella reunited once more with Castets to write El Mismo Amor, la Misma Lluvia, which starred actor friend Ricardo Darín (who had met Campanella 15 years before, abroad) and Eduardo Blanco.

The formula would be repeated with two other films, in El Hijo de la Novia, 2001 (nominated for Oscar for best foreign language film in 2002) and in Luna de Avellaneda, 2004, all of which teamed Campanella and Castests as screenwriters, and Darín and Blanco as leading and supporting actor, respectively.

Campanella has directed episodes of American TV series such as House, Law & Order: Special Victims Unit, Law & Order: Criminal Intent, 30 Rock, Halt and Catch Fire and Colony.

Campanella has also directed a number of Argentine actors, including Norma Aleandro, Alfredo Alcón, Ulises Dumont, Natalia Verbeke, Adrián Suar, Mercedes Morán, Valeria Bertuccelli and Rodrigo de la Serna, as well as English-speaking actors Chris Meloni, Denis Leary, Adrien Brody, Moira Kelly, Justin Long, Vincent D'Onofrio, Alec Baldwin, Tina Fey, Tracy Morgan, Rachel Dratch, Hope Davis, Jay Hernandez, Bridget Moynahan, Stephen Colbert, and Hugh Laurie.