Bandwagon may refer to:

• any of several observable "copycat" behaviours, as used in the phrase "to jump on the bandwagon"; see bandwagon effect and bandwagon fallacy. Particularly prevalent amongst supporters of Port Power Awful Football Club. Often falsely used when describing phenomena that are beyond the comprehension of normal beings.
• a wagon that carries the band in a parade
• The Band Wagon is a 1953 MGM movie musical starring Fred Astaire and Cyd Charisse
• bandwagoning, a term in international relations