Controller may refer to: Occupations Controller or financial controller, or in government accounting comptroller, a senior accounting position Controller, someone who performs agent handling in espionage Air traffic controller, a person who directs aircraft Computing and electronics Model–view–controller, an architectural pattern used in software engineering Controller (computing) (disambiguation) Microcontroller, a small computer on a single integrated circuit Game controller, an input device used for playing video games Control engineering Control theory, control of continuously operating dynamical systems in engineered processes and machines Irrigation controller, a device to automate irrigation systems PID controller, a control loop feedback mechanism Control loop, contains all the control elements for controlling a process variable Anti-lock brake controller, in an anti-lock braking system Industrial control system, a general term used in industrial process control Proportional control, a type of linear feedback control system Biomedical Elite controllers, individuals who do not develop AIDS after exposure to HIV Fiction Controller (comics), multiple characters Controller (Marvel Comics), a fictional character in Marvel Comics Controllers (DC Comics), a fictional extraterrestrial race in the DC Universe The Fat Controller (Sir Topham Hatt), the head of the railway in The Railway Series of books written by the Reverend W.V. Awdry, also The Thin Controller and The Small Controller on other railway lines in those books Controller, a being controlled by a Yeerk in the Animorphs series by K.A. Applegate The Controller, an AI system in the Armored Core 3 video game Music Controller (Misery Signals album), 2008 Controller (British India album), 2013 The Controllers (R&B band), a 1980s rhythm-and-blues band MIDI controller, device which allows people or machines to control multiple aspects of audiovisual performances with MIDI messages "Controller" (song), a 2017 song by New Zealand L.A.B. "Controller", a song from the 1981 album Only a Lad by the new-wave band Oingo Boingo "The Controller", a nickname of musician Nick Rhodes. See also Control (disambiguation) Control unit (disambiguation) "Controlla", 2016 single by Drake