The characters BYM can mean
- Baltimore Yearly Meeting
- Britain Yearly Meeting,
- both organizational structures of the Religious Society of Friends (Quakers)
- Bais Yaakov Machon, a High School for Jewish girls in Queens, New York City.
- BYM is the international code for Bayamo (Cuba) Civil Airport.
- Backyard Monsters
- BYM stands for Bright Yellow Mini as in a Liquid Yellow 2002-2006 Mini Cooper S automobile.
