Stefano "Steve" Della Casa (born 25 May 1953) is an Italian film critic, documentarist, essayist and festival curator.
Born in Turin, Della Casa graduated in cinema history under Gianni Rondolino. In 1974, he co-founded Turin's Movie Club, a major Italian film society, and in 1982, he co-founded the Festival Cinema Giovani, later known as Turin Film Festival. He directed the festival from 1998 to 2002. After serving as president of the Film Commission Torino Piemonte, he was appointed artistic director of the Rome Film Festival, a position he held from 2007 to 2013. In 2022, Della Casa was appointed president of the Turin Festival for the second time, a role he held for two editions. In 2024, he was named Conservatore of the Cineteca Nazionale.
Della Casa has directed several documentary films; in 2016, he won a Nastro d'Argento for I Tarantiniani, and in 2017, he received a special Nastro d'Argento for Perchè sono un genio! Lorenza Mazzetti and Nessuno ci può giudicare. He wrote numerous film essays, and worked as television and radio writer. He is a professor of film history at the Accademia Nazionale d'Arte Drammatica Silvio D'Amico.
Della Casa's nick "Steve" is a reference to sword-and-sandal film star Steve Reeves. He is a Torino FC supporter.