BKK is the IATA airport code for Suvarnabhumi Airport, Thailand.

It can also refer to:

• The previous airport code of Don Mueang International Airport, Thailand (now DMK)
• The British Karate Kyokushinkai
• Bergenshalvøens Kommunale Kraftselskap, a Norwegian power company
• The city of Bangkok, Thailand
• The Backus-Kehoe-Kydland puzzle, a puzzle in economics
• Betriebskrankenkasse, a type of insurance for healthcare in Germany
• Budapesti Közlekedési Központ (Budapest Transport Centre), the unified transport operator of Budapest, Hungary
• The Bernstein–Khovanskii–Kushnirenko theorem, in algebraic geometry
• Bukkake