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, 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) (formerly a government agency)
- Postes, télégraphes et téléphones (France)
- Postes, télégraphes, téléphones (Switzerland)
- Posta Telgraf Teşkilatı (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., 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

This disambiguation page lists articles associated with the title PTT.
If an internal link led you here, you may wish to change the link to point directly to the intended article.