TTE is a three-character combination that may refer to:
- Tan Temido Equipo, a Football Club in Uruguay
- Time Triggered Embedded Systems
- Turbine Truck Engines, Inc.
- TCL-Thomson Electronics Corporation
- Ternate Airport (Indonesia)
- Texas Text Exchange
- This Toilet Earth
- Through the earth mine communications
- Toyota Team Europe
- Transthoracic echocardiogram
- Travelling Ticket Examiner, the title of train conductors in India.
- Temporary Teacher Eligibility
- Babullah Airport, an airport in Indonesia
- TTEthernet, a time-triggered protocol
- Track and Trace of Explosives, the pan-European solution for tracking and tracing of explosives according to the European Commission Directives 2008/43/EC and 2014/4/EU (see also TTE-Europe)