TPH may refer to:

  • Walther TPH, a semi-automatic pistol made by the German arms manufacturer Walther.
  • Trains Per Hour (UK), an abbreviation used to indicate train service/schedules for a particular railway station.
  • Tryptophan hydroxylase, an enzyme.
  • Tonnes Per Hour, an abbreviation used to specify the capacity of industrial machinery such as boiler, conveyor belt and vibrating feeder.
  • Total Petroleum Hydrocarbon, an expression of chemical content.