The Dungeons & Dragons Basic Set is a set of rulebooks for the Dungeons & Dragons (D&D) fantasy role-playing game. First published in 1977, it saw a handful of revisions and reprintings. The first edition was written by J. Eric Holmes based on Gary Gygax and Dave Arneson's original work. Later editions were edited by Tom Moldvay, Dave Cook, and Frank Mentzer.

The Basic Set details the essential concepts of the D&D game. It gives rules for character creation and level-advancement for player characters of levels 1–3. It also includes information on how to play adventures inside dungeons for both players and the Dungeon Master.