BYG can refer to:
- Bang Yong Guk, acronym and stage name of the South Korean rapper.
- BYG Actuel, a record label
- BYG•DTU, the Department of Civil Engineering at the Technical University of Denmark.
Usage examples of "byg".
With his little armes houlding himselfe by the hearie and rough locks, his countenance and eyes vpon the byg and full vdder thus sucking.