PTT may refer to:
Chemistry and medicine
*
Partial thromboplastin time, a performance indicator in medicine for coagulation status
*
Photothermal Therapy, a medical treatment
*
2β-propanoyl-3β-(4-tolyl)-tropane
2β-Propanoyl-3β-(4-tolyl)tropane also known as WF-11 or 2-PTT is a cocaine Analog (chemistry), analogue 20 times more potent than cocaine at binding to the dopamine transporter with increased selectivity for the norepinephrine transporters. It ...
, a cocaine analogue
*
Polytrimethylene terephthalate, polyester
*
Pulse Transit Time, a measure of arterial blood pressure
*
Communication and technology
*
Postal Telephone and Telegraph, a government agency in many countries
**
Posterijen, Telegrafie en Telefonie (Netherlands), in the Netherlands
**
Postes, télégraphes et téléphones (France), in France
**
Postes, télégraphes, téléphones (Switzerland)
PTT (german: Post, Telefon und Telegraph, french: Postes, téléphones et télégraphes, it, Poste, telefoni e telegrafi) was the Swiss Postal Telegraph and Telephone agency, formed in 1928.
In the course of the international trend towards lib ...
, in Switzerland
**
Posta Telgraf Teşkilatı (Turkey), in Turkey
*
PTT Bulletin Board System, the largest bulletin board system in Taiwan
*
Pneumatic tube, Pneumatic tube transport
*
Push to talk, or "Press-to-Transmit", a method of conversing on half-duplex communication lines
*
Pass-the-ticket
* Platform Trust Technology, a firmware-based
Trusted Platform Module (TPM) which is part of
Intel Management Engine
Organizations
*
PTT Public Company Limited, a Thai oil and gas company
*
Pashtun Tahafuz Movement (PTM), also known as the Pashtun Tahafuz Tehrik (PTT), a human rights movement in Pakistan for the Pashtun people
*
Pennsylvania Tunnel and Terminal Railroad, the owner of the tunnels to New York Penn Station
*
Police Tactical Team, now Singapore Police Force's Special Tactics and Rescue unit
*
Prince's Trust Team, a development programme for teenagers by partners of the Prince's Trust throughout the UK
Sport
*
Port Talbot Town F.C.
Port Talbot Town Football Club ( cy, Clwb Pêl Droed Port Talbot) is a Welsh football club from Port Talbot. It was founded in 1901 as Port Talbot Athletic, one of the first clubs in the country. The club plays in the Ardal SW, and is based at ...
, a Welsh Premier League football association club
Other
*
Petronas Twin Towers in Kuala Lumpur, Malaysia
*
Photothermal time, related to plant growth
*
Pizza Time Theatre, former secondary name for Chuck E. Cheese's
*
Pull Tiger Tail, a British indie band
*
PTT (Paint the Town), a 2021 single by Loona
{{disambig