On "Friends" what is the occupation of Rachel's former fiance Barry Farber?

On “Friends,” Rachel’s former fiancé Barry Farber is an orthodontist. The profession is confirmed directly in his dialogue: while confronting Rachel, Barry says, “I’m an orthodontist.”

Barry first appears in the season-one episode “The One with the Sonogram at the End,” when Rachel reveals that she left him at the altar after discovering his affair with her maid of honor, Mindy. The failed wedding is one of the events that leads Rachel to abandon her wealthy, sheltered lifestyle and begin building an independent life in New York.

Barry’s story becomes even more awkward when he starts dating Mindy. In “The One with the Evil Orthodontist,” Rachel discovers that her former fiancé and former best friend are together. Barry and Mindy eventually marry, with Rachel attending their wedding and Ross delivering an ill-advised speech. Barry later reappears in the alternate-reality episode “The One That Could Have Been.”

A common mix-up is calling Barry simply a dentist. Orthodontists are dentists who specialize in correcting the alignment of teeth and jaws, typically using braces or other appliances. “Dentist” is broadly related, but “orthodontist” is the specific answer established by the show.