WB, Wb, or wb may refer to:
Businesses and organizations
- Warner Bros., a large American film and television company
- The WB, a United States television network from 1995 to 2006
- WB Channel, an Indian channel from Warner Bros
- RwandAir, a Rwandan airline whose International Air Transport Association code is "WB"
- Wachovia, an American banking chain whose former New York Stock Exchange IP was "WB"
- W.B. Mason, an American office supply company
- World Bank Group, an International finance organization
- World Bowling, the International governing body for nine-pin and ten-pin bowling
- Whataburger, a speed-food restaurant chain in the southern United States from Florida to Arizona
- WildBlue, a satellite internet service provider
- Waagner-Biro, an Austrian company
- Wild Bunch (company), film financer from France
- West Bengal, a state in eastern India, whose ISO abbreviation is "IN-WB"
- West Bank of the river Jordan, a disputed region in the Middle East
- West Brighton, a neighborhood on the North Shore of Staten Island, colloquially termed "the WB" or "the West"