Tph

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.