Kemp-Welch is a double-barrelled surname of British origin. People with that surname include:
Edith Kemp-Welch (1870–1941), English artist George Kemp-Welch (1907–1944), English cricketer Joan Kemp-Welch (1906–1999), British stage and film actress John Kemp-Welch (born 1936), British businessman Lucy Kemp-Welch (1869–1958), British painter and teacher Margaret Kemp-Welch (1874–1968), British painter and teacher
See also Kemp (surname) Welch (surname)