Smaug (disambiguation)

Smaug is a dragon in J. R. R. Tolkien's novel The Hobbit.

Smaug may also refer to:
 * Smaug (lizard), a genus of lizards
 * Smaug (protein), an RNA-binding protein
 * Cnemaspis smaug, a species of gecko
 * Tetramorium smaug, a species of myrmicine ant
 * SMAUG, a multi-user dungeon derived from DikuMUD