National Lampoon Songbook was an American humorous songbook which was issued in 1976. Although it appears to be a book in its own right, it was a "special issue" of National Lampoon magazine and as such it was only sold on newsstands. People who had a subscription to the magazine would still have to buy these special issues; they were not included in the subscription.
Many of the songs in the songbook were from the musical stage show, Lemmings. A few other songs, including the whole musical "Moby!" were from The National Lampoon Radio Hour. Other songs were from the album Goodbye Pop. There were also some visual print pieces (illustrations and photographs) included. The first piece in the songbook is Deteriorata, which was on the album Radio Dinner. The musical arrangements were by Dan Fox.