Kerby is both a surname and a given name. Notable people with the name include:
Surname:
Kerby (Ipswich martyr) (died 1546)
Edwin Kerby (1885–1971), Australian politician
Harold Spencer Kerby (1893-1963), Royal Air Force Air Vice-Marshal who commanded British air forces in East Africa during the Second World War
Henry Kerby (1914–1971), British Conservative Member of Parliament
Trey Kerby (born 1984), American sports blogger
William F. Kerby (1908–1989), chairman and CEO of Dow Jones & Co. and publisher of The Wall Street Journal
William J. Kerby, (1870-1936) writer, sociologist and Catholic social worker
Given name:
Kerby Raymundo (born 1981), Filipino basketball player
Kerby A. Miller, American historian
Kerby Farrell, (1913–1975), minor league baseball manager
Fictional characters:
George and Marion Kerby, lead characters in the 1937 film Topper
