Caulker is a surname. Notable people with the surname include:
Sierra Leone The Caulkers are a prominent family in Sierra Leone descended from the Englishman Thomas Corker (died 1700). Members have included: Stephen Caulker (died 1810), African Chief Richard Conray-Ba Caulker, (18??–1900) African Chief of the Bumpe Chiefdom 1864–1888 Thomas Caulker (1846–1859), son of the above who died in London Thomas Neale-Caulker (died 1898), African Chief Charles B. Caulker Christian Caulker (born 1988), Sierra Leonean footballer
Other Steven Caulker (born 1991), English footballer