Louis J. Gasnier (Paris, France September 15, 1875 – Hollywood, California USA February 15, 1963) was a French-born American film director, producer, screenwriter and actor. A cinema pioneer, Gasnier shepherded the early career of comedian
Max Linder, co-directed the enormously successful film serial
The Perils of Pauline (1914) and capped his output with the notorious exploitation film
Reefer Madness (1936).