PTO

PTO may stand for:

• United States Patent and Trademark Office or any other Patent and Trademark Office
• Parent Teacher Organization, organization that consists of parents, teachers and school staff
• Pacific Theater of Operations, World War II
• Power take-off, a splined driveshaft, usually on a tractor or truck, that can be used to provide power to an attachment or separate machine
• Paid time off, time an employee can draw from to take time off from work, without having to specify a reason
• Public Telecommunications Operator, a service provider of telecommunications services such as telephony and data communications access
• Peeled tail-on shrimp
• Peace Train Organisation, a campaign group set up in response to the repeated bombing of the Dublin to Belfast railway line
• Permission to officiate, a limited 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, an acronym commonly found on notes and letters. It is used when finding insufficient writing space on the current page, and refers the reader to material on the verso or the next page. Sometimes rearranged to "TPO", or "Turn Page Over".