Are You the One? (often abbreviated as AYTO?) is an American reality television series featuring a group of men and women that are secretly paired into couples via a matchmaking algorithm. While living together, the contestants try to identify all of these "perfect matches." If they succeed, the entire group shares a prize of up to $1 million. All couples in the first seven seasons were male-female, while in the eighth season a contestant's match could be someone of any gender.

Over the course of each season, the contestants go on dates with partners determined by competitions (or, in the seventh season only, by the "fate button"), and have the opportunity to learn in the "truth booth" if a given couple is a correct match. Once the truth booth confirms a perfect match, that couple will go to the honeymoon suite and will automatically be paired up for the remainder of the match ceremonies. At the end of each episode, the contestants pair up in a "matching ceremony" and learn how many perfect matches they have, but not which matches are correct. From season 3 onward, the prize was reduced any time that the house failed to identify any matches other than those already confirmed via the truth booth.

On June 26, 2019, the eighth season began broadcasting on MTV. This series was marked as the first to exclusively feature openly LGBT and sexually fluid contestants, a decision that was met with critical acclaim.

On March 3, 2022, it was announced that the show would be revived as an international version by Paramount+. On December 8, 2022, it was announced that Kamie Crawford would be the new host, and that the ninth season would premiere on January 18, 2023.