Cynthia Hall may refer to:
- Cynthia B. Hall, a member of the New Mexico Public Regulation Commission
- Cynthia Holcomb Hall, a United States federal judge
- Cynthia Hall, March 1971 Playboy Playmate
- Cynthia Hall, wife of Tony Hall, Baron Hall of Birkenhead, and former headmistress of The School of St Helen and St Katharine, and of Wycombe Abbey
- Cynthia Hall, wife of Florida politician Charlie Hall