PTO
PTO can mean a publishing instruction, a preliminary technical order, employee personal leave, the United States Patent and Trademark Office, or a mechanical power‑take‑off device.
Medical
Miscellaneous
Community
Parent Teacher Organization
Please Turn Over
Parent Teacher Organisation
Pedagogy and Theatre of the Oppressed
Governmental
Preliminary Technical Order
Personal Time Off
Power Take Off
Pacific Theater of Operations
Permission To Occupy
Please Take Off
Pre-Trial Order
Participating Test Organization
Power Test Operations
Academic & Science
Regional
Computing
Internet
Business
Paid Time Off
Project Team and Organization
Permanently Turned Off
Public Telephone Operator
Payment Treatment and Operations
Publishing Technology, P.L.C.
Pareto Corporation
Photo Me Australia, LTD.
Patent Trademark Office