Cockayne (surname)
Cockayne is an English surname.

People with the surname Cockayne
 Aston Cockayne (1608–1684),Cavalier, writer
 Ben Cockayne (born 1983), English rugby player
 David Cockayne (1942–2010), British electron microscopist and university professor
 Edward Alfred Cockayne (1880–1956), English physician
 Elizabeth Cockayne (1894–1988), British Chief Nursing Officer 
 Emily Cockayne (born 1973), British historian
 George Edward Cokayne (1825–1911), English genealogist
 Henry Cockayne-Cust (1819–1884), British Conservative Party politician
 Ida Cockayne (1368–1426), Welsh-Norman noblewoman
 Leonard Cockayne (1855–1934), New Zealand botanist
 William Cockayne (1561–1626), London merchant, alderman, and Lord Mayor