Authors born in 1983
- Camilla Luddington Actress, 1983
- Cappie Pondexter Basketball Player, 1983
- Cara Santa Maria Journalist, 1983
- Carla Nazih al-Berkashi Singer, 1983
- Carolina Kluft Athlete, 1983
- Carrie Underwood Songwriter, 1983
- Cat Osterman Athlete, 1983
- Chantelle Houghton Television Personality, 1983
- Charity Shea Actress, 1983
- Charity Sunshine Tillemann-Dick Composer, 1983
- Charlie Morton Baseball Player, 1983
- Charlotte Sullivan Actress, 1983
- Chelsea Wolfe Singer-Songwriter, 1983
- Cheryl Cole Singer-Songwriter, 1983
- Cheryl Yeoh Entrepreneur, 1983
- Chiara Ragnini Singer, 1983
- Chris Hemsworth Actor, 1983
- Chris Hughes Entrepreneur, 1983
- Christian Scott Trumpeter, 1983
- Christine Sinclair Football Player, 1983
- Christine Woods Actress, 1983
- Christopher Paolini Author, 1983
- Christopher Parker Actor, 1983
- Cindy Busby Actress, 1983
- Clemens Wijers Keyboardist, 1983
- Clint Dempsey Football Player, 1983
- Cole Hamels Baseball Player, 1983
- Cole Swindell Singer, 1983
- Cooper Cronk Rugby Union Player, 1983
- Craig Horner Actor, 1983
- Cub Swanson Mixed Martial Artist, 1983
- D'Brickashaw Ferguson American Football Player, 1983
- Dan Bremnes Musician, 1983
- Dan Mangan Musician, 1983
- Dani Alves Football Player, 1983
- Daniel Ek Chief Technology Officer, 1983
- Daniel Horan Theologian, 1983
- Daniela Hantuchova Tennis Player, 1983
- Daniela Ruah Actress, 1983
- Daria Werbowy Model, 1983