Mr. Personality is an American reality television series broadcast by the Fox Broadcasting Company (Fox). The five-episode series premiered on April 21, 2003 and concluded on May 19, 2003. Filmed in Malibu, California, the series followed Hayley Arp, a 26-year-old stockbroker, as she selected a suitor among a group of twenty men. In an effort for Arp to select her suitor solely based on personality, all of the men were required to wear color-coded latex masks throughout the competition. Arp eliminated a predetermined amount of suitors each week until only one remained; upon selection of a final suitor, Arp was allowed to remove his mask and see his appearance. The series was hosted by American media personality Monica Lewinsky.

Mr. Personality was a part of Fox's intent to capitalize on the burgeoning success of the reality television genre. The series received unfavorable reviews from television critics, who derided the series' concept and the network's choice of casting Lewinsky as the host. The series premiered with strong ratings, however, they waned over the course of the season; the two-hour finale was condensed into a one-hour episode as a result of the series' subpar ratings. Since the series' end, several producers and contestants have voiced their regret over Mr. Personality.