Scourge of the Slave Lords (A1–4) is an adventure module for the Dungeons & Dragons fantasy role-playing game, published by TSR, Inc. in 1986. It combines the contents of four earlier modules, all set in the World of Greyhawk campaign setting and intended for use with Advanced Dungeons & Dragons first edition rules. Scourge of the Slave Lords was ranked the 20th greatest Dungeons & Dragons adventure of all time by Dungeon magazine in 2004.