Kerckhoff
# Kerckhoff

Kerckhoff or Kerckhoffs is a Dutch and Low German toponymic surname meaning "church yard" (modern Dutch kerkhof). An ancestor may have lived near or worked in the church yard, or have come from a number of villages and hamlets named Kerkhove or Kerkhoven. Variant forms of the surname are Kerkhof, Kerkhoff(s), Kerkhove(n), and Van (de) Kerkhof(f). Notable people with the surname include:

* Auguste Kerckhoffs (1835–1903), Dutch linguist and cryptographer
   * Kerckhoffs' principle, a cryptographic principle named for him
* Hermann Kerckhoff (1937–2023), German-born Canadian slalom canoeist
* Joseph Kerckhoffs (1789–1867), Dutch physician
* Steven Kerckhoff (born 1952), American mathematician
* Sylvia Kerckhoff (born 1928), American mayor of Durham, North Carolina
* William G. Kerckhoff (1856–1929), American businessman
   * Kerckhoff Dam, a reservoir dam in California named after him
   * Kerckhoff Marine Lab, southern California marine station owned and operated by Caltech named after him
