PTO

PTO may refer to:

• P.T.O. (video game), a war strategy simulation series by Koei based on the World War II events
• "P:T:O:", a track from the 1977 Klaus Schulze album Body Love
• The Phantom of the Opera (adaptations), or the Phantom character from any of these
• Please Turn Over, a 1959 British comedy film
• Promenade Theatre Orchestra, an English quartet founded in 1969

• Patent and Trademark Office (disambiguation), a government office that handles the issuing of both patents and trademarks
• Parent teacher organization, organization that consists of parents, teachers and school staff
• Peace Train Organisation, a campaign group set up in response to the repeated bombing of the Dublin to Belfast railway line
• Professional Triathletes Organisation, an organisation that representing non-drafting professional triathletes
• Public Telecommunications Operator, a service provider of telecommunications services such as telephony and data communications access

• Parietal-temporal-occipital, an area of the brain
• Permeability tuned oscillator, an electronic circuit; see 75A-4 and KWS-1#PTOsc
• Power take-off, one of several methods for taking power from a power source

• Public Transport Operator
• Pacific Theater of Operations, several
• Paid time off, time an employee can draw from to take time off from work
• Peeled tail-on shrimp
• Permission to officiate, a form of license to undertake ecclesiastical duties within the Church of England
• Phoenix Thunderbirds Open, a golf tournament on the LPGA Tour from 1962 to 1965
• "Please turn over", written at the bottom of a double-sided document, see list of acronyms: P#PT
• Professional tryout, a type of hockey contract in professional ice hockey
• Proof-theoretic ordinal, a concept in ordinal analysis that refers to an ordinal assigned to a mathematical theories to measure their strength.
• Zo'é language (ISO 639-3 code: pto)

• All pages with titles containing PTO
• All pages with titles beginning with PTO