TPO

TPO may refer to:

Arts

• Taipei Philharmonic Orchestra
• Thailand Philharmonic Orchestra
• Tin Pot Operation, an indie-punk band from Belfast, Northern Ireland
• Tokyo Philharmonic Orchestra

Biology and medicine

• the temporo-parieto-occipital junction of the brain
• thyroid peroxidase (or thyroperoxidase), an enzyme in the thyroid
• thrombopoietin, a hormone stimulating platelet growth

Government

• Transportation Planning Organization, United States

Law

• Temporary protective order, a court order banning someone from going near a third party that they have allegedly harassed, in Ireland or the United States
• a tree preservation order in the United Kingdom

Military

• Track Production Officer in NATO's Control and Reporting Centre

Science and technology

• ThermoPlastic Olefin, a plastic polymer/filler blend
• Transmitter power output in radio transmission

Other

• The People's Operator, a mobile virtual network operator, United Kingdom
• Third-party ownership in association football
• Time, Place, Occasion, an acronym primarily used to indicate dependence on context in Japanese language
• A Transit Patrol Officer of Victoria Transit Patrol, Australia
• Travelling Post Offices, mail trains in Great Britain
• Treatment Plant Operator, an operator of water and waste water treatment plants
• Triple peel on opponent manoeuvre in croquet
• Turn Page Over, an acronym commonly found on notes and letters that is used when finding insufficient writing space on current page or to refer reader to material on the next page; sometimes rearranged to "PTO" for "Please Turn Over"