Instrument

Instrument may refer to:

Science and technology

 * Flight instruments, the devices used to measure the speed, altitude, and pertinent flight angles of various kinds of aircraft
 * Laboratory equipment, the measuring tools used in a scientific laboratory, often electronic in nature
 * Mathematical instrument, devices used in geometric construction or measurements in astronomy, surveying and navigation
 * Measuring instrument, a device used to measure or compare physical properties
 * Medical instrument, a device used to diagnose or treat diseases
 * Optical instrument, relies on the properties of light
 * Quantum instrument, a mathematical object in quantum theory combining the concepts of measurement and quantum operation
 * Scientific instrument, a device used to collect scientific data
 * Surgical instrument
 * Vehicle instrument, a device measuring parameters of a vehicle, such as its speed or position
 * Weather instrument, a device used to record aspects of the weather

Music

 * Musical instrument, a device designed to produce musical sounds
 * Experimental musical instrument
 * Percussion instrument, which is struck
 * String instrument, uses vibrating strings
 * Transposing instrument, allows music to be played in a different key
 * Wind instrument, which is blown
 * Brass instrument, a sub type of wind instruments
 * Woodwind instrument, another sub type
 * Instrument (album), by To Rococo Rot, 2014
 * Instrument Soundtrack, 1999 album by American band Fugazi
 * Instrument 1, a MIDI controller designed by Artiphon

Other uses

 * Instrument (film), a documentary of the band Fugazi, directed by Jem Cohen
 * Instruments (application), a performance visualizer
 * Instrumental variable, a method used in statistics
 * Financial instrument, a formal documentation of a financial transaction
 * Legal instrument, a formal documentation of a status or transaction
 * Negotiable instrument, a type of contract
 * Statutory instrument, a form of legislation
 * Instrumental case, in linguistics, a grammatical case expressing the instrument by which an action is performed