BMX may refer to:

• BMX, a sport of racing on bicycles on motocross style tracks
  • BMX bike, a bicycle used for casual use and sport, and designed mainly for dirt and motocross cycling
• Big Mountain Air Force Station (IATA: BMX), a military use airstrip located near Big Mountain, Alaska
• Cytoplasmic tyrosine-protein kinase BMX, an enzyme that in humans is encoded by the BMX gene
• BMX (quadraphonic sound), a quadrophonic sound system

This disambiguation page lists articles associated with the title BMX.
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