TTS may refer to:
Places
Taman Tasik Semenyih, Kuala Lumpur, Malaysia, a student town Toba Tek Singh District, a district in the Punjab province of Pakistan Toba Tek Singh Tehsil Toba Tek Singh, Punjab, Pakistan
Schools Tamil Nadu Theological Seminary Tanglin Trust School, Singapore Thomas Telford School, a City Technology College in Telford, Shropshire
Science Medicine Temporary threshold shift, auditory fatigue Tarsal tunnel syndrome, a foot condition Transdermal therapeutic system, a drug delivery system Thrombosis with thrombocytopenia syndrome, a rare condition of blood clotting Takotsubo syndrome, a heart condition, also known as takotsubo cardiomyopathy
Other uses in science T Tauri star, in astronomy Three-taxon analysis, in phylogenetics Time-temperature superposition, in polymer physics Time translation symmetry, invariabilty of the laws of physics
Technology
Text-to-speech, in speech synthesis Teletypesetter, in telegraphy Transaction Tracking System, on the Novell NetWare OS Technology Transformation Services, of the US General Services Administration
Transport Audi TTS, a car Tower Transit Singapore, a bus operator Tanker Transport Services BV, a Dutch barge tanker company
Other uses Girls' Generation-TTS, a South Korean music subgroup Telegraphic transfer, a selling rate in Japan Tabletop Simulator, a video game emulating board games Trader tax status, a form of US business for securities trading