PTO

PTO may refer to:

Entertainment

 * 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

Organisations

 * 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

Science and technology

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

Other uses

 * 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


 * Professional tryout, a type of hockey contract in professional ice hockey
 * Zo'é language (ISO 639-3 code: )