Sylvia

Sylvia may refer to:

In-universe

 * Sylvia Noble, Donna Noble's mother.
 * Sylvia Thaw, an assistant to Richard Lazarus. (TV: The Lazarus Experiment)
 * Sylvia, the last surviving member of the human race in an alternate reality. (GAME: City of the Daleks)
 * Sylvia, Rex Farrel's secretary. (TV: Terror of the Autons)
 * Sylvia Dillane, chairman of the North Sea Boating Club. (TV: World War Three)

Behind the scenes

 * Sylvia Coleridge, who played Amelia Ducat in TV: The Seeds of Doom.
 * Sylvia James, a make-up artist.
 * Sylvia Seymour, who played Miss Trefusis in TV: The End of Time.
 * Sylvia Syms, who played Mrs. Pritchard in TV: Ghost Light.