Quantico is an American thriller drama television series which aired on ABC from September 27, 2015, to August 3, 2018, with 57 episodes broadcast over three seasons. Produced by ABC Studios, the series was created by Joshua Safran, who also served as the showrunner. Mark Gordon, Robert Sertner, Nicholas Pepper and Safran are its executive producers. Michael Seitzman replaced Safran as the new showrunner and an executive producer in its third season, with Safran remaining as an executive producer.

Priyanka Chopra stars as Alex Parrish, who joins the Federal Bureau of Investigation after graduating from the FBI Academy and becomes a prime suspect in a terrorist attack on Grand Central Terminal. Quantico initially had two timelines: the present, when Parrish flees from captivity to prove her innocence, and the past, with her and her fellow recruits training at the academy, during which details of their individual lives are learned. The series switched to a single timeline from the middle of the second season onward.

In addition to Chopra, the first South Asian to headline an American network drama series, the original cast—which changed significantly as the series progressed—included Jake McLaughlin, Yasmine Al Massri, Johanna Braddy, Tate Ellington, and Graham Rogers as her fellow recruits, with Josh Hopkins and Aunjanue Ellis as their trainers at the FBI Academy in Quantico, Virginia. The series' first season was produced primarily in Montreal, with downtown Montreal and Sherbrooke, Canada standing in for New York City and Quantico, Virginia in the United States. Production moved to New York during the second season, with a few episodes being shot in Italy and Ireland for its third season.

Quantico received positive reviews from critics, with praise for Chopra's performance and the diversity of the cast. The "confusing dual timelines" were criticized by some. The series was nominated for four People's Choice Awards, including Favorite Network TV Drama, with Chopra winning two: Favorite Actress in a New TV Series in 2016—making her the first South Asian to win a People's Choice Award—and Favorite Dramatic TV Actress in 2017. ABC canceled the series in May 2018, and it ended after three seasons.