George Jean Nathan (February 14, 1882 – April 8, 1958) was an American drama critic and magazine editor.

Nathan had a reputation as a "ladies' man" and the character of Addison De Witt, the waspish theater critic who squires a starlet (played by a then-unknown Marilyn Monroe) in the 1950 film All About Eve was based on Nathan.

[2][3] Beginning in the late 1920s, Nathan had a romantic relationship with actress Lillian Gish that lasted almost a decade.

[6] Owen Hatteras referred to the play as a failure when he quipped that Nathan had "...forbidden the production of the play henceforth in any American city save Chicago, in which city anyone who chooses may perform it without payment of royalties".

[8] An honor in dramatic criticism, the George Jean Nathan Award, is named after him.