Kimberley Nixon (born 24 September 1985) is an English-born Welsh actress. Nixon is known for her role as Sophy Hutton in the BBC One period drama Cranford, and appearances in various films such as Wild Child and Angus, Thongs and Perfect Snogging. She also starred as Josie Jones in the Channel 4 comedy-drama Fresh Meat and as Sarah Pearson in the BBC Two comedy Hebburn.

Born in Bristol to Welsh parents, Nixon and her six brothers were raised in Ynysybwl near Pontypridd, Wales, where she attended Coedylan Comprehensive School, now known as Pontypridd High School. After high school, Nixon trained at the Royal Welsh College of Music & Drama in Cardiff alongside Tom Cullen and Aneurin Barnard. Before her graduation in 2007, she signed to Universal Studios after appearing in a college production of The Comedy of Errors. She is a former member of the National Youth Theatre of Wales.