Kirchhoff, Kirchoff or Kirchhoffer is a German surname. Notable people with the surname include:
* Adolf Kirchhoff (1826–1908), German classical scholar and epigrapher
* Alfred Kirchhoff (1838–1907), German geographer and naturalist
* Alphonse Kirchhoffer (1873–1913), French Olympic fencer
* Charles William Henry Kirchhoff (1853-1916), American editor and metals expert
* Detlef Kirchhoff (born 1967), German rower
* Fritz Kirchhoff (1901–1953), German screenwriter, film producer and director
* Gustav Kirchhoff (1824–1887), German physicist — Kirchhoff's laws in electricity, spectroscopy, thermochemistry
* Gottlieb Kirchhoff (1764–1833), German chemist
* Jan Kirchhoff (born 1990), German footballer
* Mary Kirchoff (born 1959), American fantasy novelist
* Paul Kirchhoff (1900–1972), German anthropologist and ethnologist of pre-Columbian Mesoamerican cultures
* Robert Kirchhoff (born 1962), Slovak film director
* Ulrich Kirchhoff (born 1967), German show jumper
See also
* 10358 Kirchhoff, a main-belt asteroid
* Kirchhoff (crater), the lunar crater named for Gustav Kirchhoff
* Kirchhoff Institute of Physics, a research institute in Heidelberg, Germany
* Kirchhoff's laws (disambiguation), Kirchhoff's laws, a group of laws of physics (in thermodynamics, electrical circuits, spectroscopy, and fluid mechanics) named for Gustav Kirchhoff
* Kirchhoff's theorem, in graph theory, a theorem concerning the number of "spanning trees" in a graph, named for Gustav Kirchhoff
*Kirchhof (disambiguation)
{{surname, Kirchhoff
German-language surnames
