Blair Waldorf

Blair Cornelia Waldorf (married name Bass) is one of the main characters of Gossip Girl, introduced in the original series of novels and also appearing as the lead in the television adaptation; she also appears in the comic adaptation. Described as "a girl of extremes" by creator Cecily von Ziegesar, she is a New York City socialite and a comical overachiever who possesses both snobbish and sensitive sides. Due to her position as queen bee of Manhattan's social scene, Blair's actions and relations are under constant scrutiny from the mysterious Gossip Girl, a popular blogger.

Leighton Meester, who portrayed the character in the television drama, has described Blair as being insecure about her social status. At times, this anxiety creates flaws and complexities which contribute to character development. In Meester's view, the true Blair is ultimately a good girl at heart.

Blair has been compared to vintage film and literary figures, including Becky Sharp and Lizzie Eustace. She is commonly likened to Lila Fowler of Francine Pascal's Sweet Valley High series. Meester's portrayal has also drawn comparisons to roles played by Joan Collins and Audrey Hepburn. She is the most critically acclaimed character of the franchise, while the television character has drawn real-life attention surrounding fashion and her love life.