OOP

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, are 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