Cadbury is a surname, and may refer to:
Adrian Cadbury (1929–2015), English businessman
Beatrice Boeke-Cadbury (1884–1976), English-Dutch social activist, educator and Quaker missionary, daughter of Richard Cadbury
Deborah Cadbury, British author, historian and television producer
Dik Cadbury, English musician and singer
Dominic Cadbury (born 1940), English businessman
Dorothy Adlington Cadbury (1892–1987), English botanist and company director
Edward Cadbury (1873–1948), British chairman of Cadbury Brothers, business theorist and philanthropist
Egbert Cadbury (1893–1967), English First World War flying ace and managing director of Cadbury's
Elizabeth Cadbury (1858–1951), British activist, politician and philanthropist, wife of George Cadbury
Elizabeth Cadbury-Brown (1922–2002), American-British architect
George Cadbury (1839–1922), English chocolate manufacturer
George Cadbury Jr (1878–1954), British chairman of Cadbury, business theorist and philanthropist, son of George Cadbury
Geraldine Cadbury (1864–1941), British author and reformer
Henry Cadbury (1883–1974), American religious scholar
H. T. Cadbury-Brown (1913–2009), English architect
Jocelyn Cadbury (1946–1982), British Conservative Party politician
John Cadbury (1801–1889), English founder of the Cadbury company
Peter Cadbury (1918–2006), English entrepreneur
Richard Cadbury (1835–1899), English manufacturer and philanthropist
Richard Tapper Cadbury (1768–1860), English draper
Ruth Cadbury (born 1959), English Labour Party politician
William Adlington Cadbury (1867–1957), English businessman
William Warder Cadbury (1877–1959), American physician, author and medical missionary.