Chris Terrio (born December 31, 1976) is an American screenwriter and film director. He is best known for writing the screenplay for the 2012 film Argo, for which he won the Academy Award for Best Adapted Screenplay. Terrio also won the Writers Guild Award for Best Adapted Screenplay of 2012 and was nominated for Golden Globe Award for Best Screenplay, a BAFTA, and the 2013 Los Angeles Film Critics Award for Best Adapted Screenplay for this work.

Terrio wrote the screenplay for Batman v Superman: Dawn of Justice, the follow-up to Zack Snyder's Man of Steel, based on an earlier draft by David S. Goyer, and is credited as co-writer for the 2017 film Justice League, alongside Joss Whedon for the theatrical cut and Zack Snyder and Will Beall for the 2021 director's cut for Warner Bros. He completed another screenplay, A Foreigner, based on an article by the journalist David Grann. Terrio also co-wrote the script for Star Wars: The Rise of Skywalker with director J. J. Abrams.

Terrio was raised in a Catholic family in Staten Island, and graduated from St. Joseph by the Sea High School. He is of Italian, Irish, and Acadian descent. He graduated in 1997 from Harvard University, where he studied English literature and German phenomenology, lived in Adams House, and participated in the Harvard Radcliffe Dramatic Club and the Hasty Pudding Theatricals.

Terrio attended University of Cambridge for his MLitt, but eventually decided to enroll in film school. He received his master's degree from the USC School of Cinematic Arts in 2002.

At age 26, Terrio directed the feature film Heights (Sony Pictures Classics, 2005), which premiered at the Sundance Film Festival. It follows a pivotal twenty-four hours in the interconnected lives of five New Yorkers. It stars Glenn Close, Elizabeth Banks, James Marsden and Jesse Bradford, and features Isabella Rossellini, George Segal and Rufus Wainwright in small roles. It was one of the final films produced by Ismail Merchant and Richard Hawley. The film won a "Best Independent Feature Film Casting" award from the Casting Society of America, USA in 2005.

In 2010, he directed the episode "I Look Like Frankenstein", which was Episode 8 in Season 3 of Damages on FX.

In 2002, he directed, wrote and produced a short film titled Book of Kings, which starred Aasif Mandvi among others. It premiered at the first annual Tribeca Film Festival in 2002.^{[citation needed]}

Terrio wrote the script for Argo, winning the Academy Award for Best Adapted Screenplay for the screenplay, and the Writers Guild of America Award for Best Adapted Screenplay. His screenplay was also nominated for Best Screenplay awards from the Golden Globes and the BAFTA Awards. For the Argo screenplay, he also won Best Screenplay or Best Adapted Screenplay honors from the Los Angeles Film Critics Association Awards, the Online Film Critics Society Awards, the Austin Film Critics Association, the Phoenix Film Critics Society Awards, the San Diego Film Critics Society Awards, the Southeastern Film Critics Association Awards, the 2013 University of Southern California (USC) Scripter Award, and the Kansas City Film Critics Circle Awards. He loosely adapted the screenplay based on a Wired article by Joshuah Bearman titled "The Great Escape" and the memoir of Tony Mendez, The Master of Disguise, supplementing that material with extensive research of his own.