BI

Bi or bi may refer to:

• Bi (jade), a type of jade disc produced in ancient China
• "Bi" (song), a 1993 song by Living Colour
• Bi (album), a 2008 album by Astyplaz
• Bi-, a number prefix denoting two
• Billon (alloy), an alloy of less than 50% silver
• Bisexuality, a sexual orientation
• Bipolar (disambiguation), a term used in several sciences and technologies
• 비 or Rain, South Korean entertainer
• Ы or yery, a Cyrillic letter