NUG may refer to any of a number of entities:

Full name

• Nug (graffiti artist)

Acronym

• National Unity Government of Myanmar, a parallel government created in the aftermath of the 2021 Myanmar coup d'état by supporters of ousted Aung San Suu Kyi.

• Guidelines for National Unification between mainland China and Taiwan

• Necrotizing ulcerative gingivitis, a subclassification of the Necrotizing periodontal diseases