Tiffany Mitchell is a fictional character from the BBC soap opera EastEnders, played by Martine McCutcheon from 1995 until 1999. The character was created by writer Tony Jordan. She was introduced as a school friend of Bianca Jackson in January 1995.

Martine Kimberley Sherrie McCutcheon is an English actress and singer. She began appearing in television commercials at an early age and made her television debut in the children's television drama Bluebirds in 1989. In the early 1990s, she had minor success as one third of the pop group Milan, but it was her role as Tiffany Mitchell in the BBC's soap opera EastEnders and her role in the 2003 romantic comedy Love Actually that brought her stardom. For the former she won the National Television Award, while the latter earned her the Empire and MTV Movie awards. She was written out of EastEnders at the end of 1998 and then embarked on a pop career, this time as a solo artist.