Deathtrap Dungeon is a single-player adventure gamebook written by Ian Livingstone, and illustrated by Iain McCaig. Originally published by Puffin Books in 1984, the title is the sixth gamebook in the Fighting Fantasy series. It was later republished by Wizard Books in 2002.

Sir Ian Livingstone is an English fantasy author and entrepreneur. Along with Steve Jackson, he is the co-founder of a series of role-playing gamebooks, Fighting Fantasy, and the author of many books within that series. He co-founded Games Workshop in 1975 and helped create Eidos Interactive as executive chairman of Eidos Plc in 1995.