Smallbone is a surname. Notable people with the surname include:

Frederick Smallbone (born 1948), British rower Joel Smallbone (born 1984), Australian singer and actor with his brother Luke (born 1986) in For King & Country Rebecca Smallbone (born 1977), became Rebecca St. James, older sister of For King & Country duet Will Smallbone (born 2000), English-born, Irish international footballer

Other uses Smallbone Deceased, a mystery novel by Michael Gilbert Smallbone Park, a cricket ground in Rotorua, New Zealand

See also Robert Smallbones (1884-1976), British diplomat