Yb

YB or Yb may refer to:

• YB (band), a South Korean rock band (short for Yoon Do Hyun Band)
• YoungBoy Never Broke Again (born 1999), American rapper
• Young Buck (born 1981), rapper

• Youngstown Belt Railroad, a part of the Ohio Central Railroad System
• Ypatingasis būrys, a Nazi killing squad primarily composed of Lithuanian volunteers
• BSC Young Boys, a Swiss football club

• Yottabit (Yb), a unit of information used, for example, to quantify computer memory or storage capacity
• Yottabyte (YB), a unit of information used, for example, to quantify computer memory or storage capacity

• Yb, Russia
• Yang Berhomat, Malay for The Honorable, styled before Members of Parliament
• Ytterbium, symbol Yb, a chemical element