Mon is a district located in the northeastern state of Nagaland, India. It is one of the eleven districts in Nagaland and is situated in the eastern part of the state. Mon district shares its borders with Myanmar (Burma) on the east.

Mon district is known for its rich cultural heritage and is home to the Konyak tribe one of the major Naga tribes. The Konyak tribe is renowned for their distinctive traditional attire, tattoo art and headhunting history.