Sheila White is an English film, television and stage actress. She is married to former theatre producer Richard M. Mills and lives in Kingston, Surrey.

White was born in London. She began her career at the age of twelve in the pantomime Cinderella at the Golders Green Hippodrome starring Arthur Askey as a member of Terry's Juveniles. This led to an audition for the London production of The Sound of Music at the Palace Theatre where she played the parts of Brigitta and Louisa for three years. She then became a student at the Corona Stage School in Hammersmith, West London.

At sixteen, she still played children's roles, as she appeared young for her age; the start of her television career was in Z-Cars with Malcolm McDowell. A theatre tour of Counter Crime followed and the musical tour of The Roar of the Greasepaint—the Smell of the Crowd starring Norman Wisdom and Willoughby Goddard, written by Leslie Bricusse and Anthony Newley, playing one of the urchins with Elaine Paige and choreography by Gillian Lynne. Sheila White's big break came playing the part of Eileen in the musical On The Level at the Saville Theatre. She was taken out of the chorus and the song "Bleep – Bleep", was written especially for her. This song proved to be a show-stopper, making Sheila White's name in the West End theatre. This success led to the part of Bet, Nancy's best friend in Lionel Bart's 1968 film musical Oliver!, accompanying Shani Wallis as Nancy and Mark Lester as Oliver in the songs "It's a Fine Life" and "I'd Do Anything".