Gillingham is an English surname. Notable people with the surname include:
Anna Gillingham (1878–1963), educator and psychologist Brad Gillingham (born 1970), American world champion powerlifter Charlie Gillingham (born 1960), keyboardist and multi-instrumentalist David Gillingham (born 1947), contemporary American composer Francis Gillingham (1916–2010) Francis John Gillingham (1916-2010), pioneering neurosurgeon Frank Gillingham (1875–1953), English cricketer. He played for Essex between 1903 and 1928 Gale Gillingham (1944–2011), American football player George Gillingham (died 1668), Canon of Windsor from 1639 to 1668 Joanie Gillingham (born 1961), Canadian rower John Gillingham (born 1940), Medieval historian and emeritus professor of the London School of Economics Karl Gillingham (born 1965), American professional strongman and powerlifter Martin Gillingham (born 1963), English sports commentator and journalist Nick Gillingham (born 1967), British Olympian Susan E. Gillingham (born 1951), British theologian William Gillingham (disambiguation), multiple people