Carlotta Giudicelli is a fictional character from The Phantom of the Opera.

A spoiled diva, Carlotta is the prima donna of the Opera Populaire whose incredible ego exhausts and despairs all those around her, but whose status keeps them grovelling to her day and night.

In Andrew Lloyd Webber's production, Carlotta is one of the major singing parts, but also is a large source of comic relief in the production. She has been played by Rosemary Ashe and Judy Kaye among others.

In the Lloyd Webber-Joel Schumacher 2004 film version, she was played by Minnie Driver. Due to Driver's lack of experience in opera, her singing voice was dubbed by opera singer Margaret Preece.