Kydd is a surname. Notable people with the surname include:
Cynna Kydd, Australian netball player Jonathan Kydd (academic), British agricultural expert Jonathan Kydd (actor), British actor Robbie Kydd, rugby union player Sam Kydd, Irish-born British actor
See also Frances Shand Kydd, mother of Diana, Princess of Wales Peter Shand Kydd, stepfather of Diana, Princess of Wales