{{wiktionary}} '''Circuit''' may refer to:

{{toc right}} == Science and technology ==

=== Electrical engineering === * Electrical circuit, a complete electrical network with a closed-loop giving a return path for current ** Analog circuit, uses continuous signal levels ** Balanced circuit, paths are impedance-matched ** Circuit analysis, the process of finding the voltages across, and the currents through, every component in an electrical circuit ** Circuit diagram, a graphical representation of an electrical circuit ** Digital circuit, uses discrete signal levels ** Electronic circuit, contains "active" (nonlinear) electronic components capable of performing amplification, computation, and data transfer *** Asynchronous circuit, or self-timed circuit, a sequential digital logic circuit that is not governed by a clock circuit or global clock signal *** Integrated circuit, a set of electronic circuits on a small "chip" of semiconductor material **** Mixed-signal integrated circuit, contains both analog and digital signals *** Synchronous circuit, a digital circuit in which the changes in the state of memory elements are synchronized by a clock signal ** Printed circuit board, on which electronic components are supported and connected using copper tracks on a non-conductive substrate ** Series and parallel circuits, two ways in which electrical components may be interconnected ** Simple filters, including: *** LC circuit or tank circuit, consisting of an inductance and a capacitance *** RC circuit, comprises a resistance and a capacitance *** RL circuit, comprises a resistance and an inductance *** RLC circuit, comprises a resistance, an inductance, and a capacitance ** Telecommunication circuit, on which information is transmitted ** Nonlinear circuit, a circuit with nonlinear elements.

=== Mathematics and computer science ===

* Circuit (computer theory), a theoretical structure simulating electrical and data paths ** Boolean circuit, a mathematical model for digital logic circuits ** Integer circuit, a mathematical object of computational complexity * Circuit complexity, a branch of computational complexity theory * Cycle (graph theory), a closed path, with no other repeated vertices than the starting and ending vertices * Circuit of a matroid * Circuit (neural network), a computational subgraph within an artificial neural network that performs a specific, interpretable function

=== Other sciences === * Neural circuit, in neuroscience * Hydraulic circuit, in fluid mechanics * Magnetic circuit, in physics, one or more closed loop paths containing a magnetic flux * Monetary circuit theory, a heterodox theory of monetary economics, also called ''circuitism'' * Pneumatic circuit, in fluid mechanics * Synthetic biological circuit, in synthetic biology

== Arts, entertainment, and media== * ''Circuit'' (film), a 2001 gay-themed film set in the world of gay circuit parties * ''Mario Kart: Super Circuit'', a 2001 Game Boy Advance game and the third game in the ''Mario Kart'' series * Circuit (film character), a character from the Indian film series ''Munna Bhai'' * Circuit, a character from ''Power Rangers Time Force'' * ''Circuitt'', a 2023 Indian Marathi-language action thriller film starring Vaibhav Tatwawadi and Hruta Durgule in lead roles

== Church == * Circuit (LCMS), a local grouping of congregations in the Lutheran Church–Missouri Synod * Methodist Circuit, a form of church governance in Methodism

== Government and law == * Circuit (administrative division), an administrative country subdivision in East Asia * Circuit court, the name of court systems in several common law jurisdictions

== Sports == * Circuit training, a form of high-intensity aerobics * ITF Pro Circuit, pro tennis tours of the International Tennis Federation ** ITF Men's Circuit ** ITF Women's Circuit

== Transportation and racing == * Circuit (airfield), also called pattern, a standard path followed by aircraft when taking off or landing * Circuit, a race track or one complete traverse of a track ** Formula One circuits (see list of Formula One circuits) ** Kart circuit, a race track designed for kart racing

== Other uses == * Circuit (software), a collaboration service software by Unify * Circuit, slang for hangouts or events frequented by a given social circle * Circuit party, a gay dance event

== See also == * {{lookfrom|Circuit}} * {{intitle|circuit}} * ''Circuital'', a 2011 album by My Morning Jacket * Cirkut * The Circuit (disambiguation)

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