Monster Manual II might refer to:
- Monster Manual 2 4th edition (2009), D&D 4th edition by Rob Heinsoo and Stephen Schubert
- Monster Manual II 3rd edition (2002), D&D 3rd edition by Ed Bonny, Jeff Grubb, Rich Redman, Skip Williams, Steve Winter.
- Monster Manual II 1st edition (1983), Advanced Dungeons & Dragons 1st edition by Gary Gygax.
For other books containing the title "Monster Manual", see Monster Manual (disambiguation).