Kidder is a surname. Notable people with the surname include:
Alfred V. Kidder (1885–1963), American archaeologist Daniel Parish Kidder (1815–1891), American theologian Edward Kidder (1665/66–1739), 18th century pastry cook Frederic Kidder (1804–85), American author Hugh Kidder (1897–1918), officer in the United States Marine Corps during World War I Janet Kidder (born 1972), Canadian actress Jefferson P. Kidder (1815–1883), 19th century American lawyer, jurist, and politician Kathryn Kidder (1868–1930), American actress Margot Kidder (19482018), Canadian American actress Ray Kidder, American physicist and nuclear weapons designer Rushworth Kidder (1944–2012), founder of the Institute for Global Ethics Sarah Kidder (c.1839–1933), first female railroad president in the world Tracy Kidder (1945–2026), American writer of nonfiction books