OOP, Oop, or oop may refer to:
Science and technology
Object-oriented positioning, another name for feature-oriented positioning in microscopy Object-oriented programming, a computer programming paradigm Order of operations, in mathematics, rules for which parts of an expression are evaluated first Out of position (crash testing)
Others
Order of play, schedule of contests in a tennis event Out-of-pocket expenses, in health care, expenses that the insured party must pay directly to the health care provider Out of position, in poker a disadvantageous poker position in the order of play Out of print, a term referring to a book or other work that is no longer being published Oop!, a software idea in Douglas Coupland's novel Microserfs Restraining order, also known as an order of protection or OOP
See also Alley Oop (disambiguation) Objectives Oriented Project Planning, in project management OOPP, out-of-process plug-ins in computer software applications Oops (disambiguation)