National Lampoon

National Lampoon may refer to:


 * National Lampoon (magazine), the original humor magazine from 1970 to 1998, and those spinoffs that directly related to the magazine:
 * National Lampoon Lemmings, a 1973 stage show
 * The National Lampoon Radio Hour, produced from 1973 to 1974
 * National Lampoon's Animal House, a 1978 film, also based upon stories from the magazine
 * National Lampoon's Movie Madness, a 1981 film
 * National Lampoon's Class Reunion, a 1983 film
 * National Lampoon's Vacation (film series), a series of comedy films based upon stories written for National Lampoon magazine
 * National Lampoon's Joy of Sex, a 1984 film
 * National Lampoon's Christmas Vacation, a 1989 film
 * Loaded Weapon 1, a 1993 film sometimes known as National Lampoon's Loaded Weapon 1
 * National Lampoon's Senior Trip, a 1995 film
 * National Lampoon's Van Wilder, a 2002 film
 * National Lampoon, Inc., a company formed in 2002 which licensed out all subsequent productions that went under the National Lampoon name
 * National Lampoon's Christmas Vacation 2, a 2003 film