A Big Top is a large tent in which a traveling circus takes place.

It may also refer to:

• Big Top (Transformers), a Transformers character
• Big Top (1950 TV series), a children's television series in the 1950s
• Big Top (2009 TV series), a BBC comedy series
• Big Top (video game), a 1983 computer game
• Big Top (comic strip), a comic strip by Rob Harrell
• "Big Top" (Dead Zone), an episode of The Dead Zone TV series
• Bigtop Records, a record label
• Big Top (album), a 2000 album by free jazz drummer Whit Dickey
• Big Top Sydney, an entertainment and concert venue in Luna Park, Sydney
• Big Top was a nickname given by Singapore Airlines to their Boeing 747-300s

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