Tom tom and similar names may refer to:

In music:

* Tom-tom drum, a cylindrical drum with no snare
* Tom Tom Club, a New Wave band
* Tom Tom Club, an album by Tom Tom Club
* Tom Tom Blues, an album by The 77s
* Tom Tom Tom, a Finnish entry in the Eurovision Song Contest 1973 by Marion Rung
* Tom, Tom, the Piper's Son, a nursery rhyme

In other uses:

* TomTom, a Netherlands-based maker of GPS and automotive navigation systems
* Tom Tom (TV series), a science-themed children's television series on BBC TV, 1966-1969
* FICON project, a fighter plane experiment called Project Tom-Tom

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The Thompson submachine gun is an American submachine gun that became infamous during the Prohibition era. It was a common sight of the time, being used by both law enforcement officers and criminals.[1] The Thompson was also known as: the "Tommy Gun", the "Trench Broom", the "Chicago Piano", the "Chicago Typewriter", and the "Chopper".