Lanphier is a surname and may refer to:
Fay Lanphier (1905–1959), model James Lanphier (1920–1969), American actor Jeremiah Lanphier (1809–1898), lay missionary Thomas George Lanphier Sr. (1890–1972), early aviator Thomas George Lanphier Jr. (1915–1987), World War II pilot
See also Lanphier High School, Springfield, Illinois