Regulator
Regulator may refer to:

Technology
Regulator (automatic control), a device that maintains a designated characteristic, as in:
Battery regulator
Pressure regulator
Diving regulator
Voltage regulator
Regulator (sewer), a control device used in a combined sewer system
Regulator (timepiece), a device in mechanical timepieces attached to the balance spring for adjusting the rate of the balance wheel
Regulator precision pendulum clock, originally used as a time-standard for adjusting or regulating other clocks and watches
Regulator, the throttle of a steam engine
Regulator, a component of Uilleann pipes, a form of bagpipes

Science
Regulator (mathematics), a positive real number used in Dirichlet's unit theorem
Regulator (biology), an animal that is able to maintain a constant internal environment
Regulator gene, a gene involved in controlling the expression of one or more other genes
Regulator, an auxiliary physics concept used in regularization

Music and literature
The Regulators (novel), a novel by Stephen King writing as Richard Bachman
"The Regulator", a song by Clutch from Blast Tyrant
"Regulator", a song by Devin Townsend from Ocean Machine: Biomech

Organizations
Regulator, a member of the Royal Navy Police, formerly the Royal Navy Regulating Branch
Regulator, a member of the Red Army traffic control units, mostly female
Regulators, a faction in the Regulator Movement (1765–1771) in Provincial North Carolina
Regulator, a member of the Shaysites, followers of Daniel Shays during Shays' Rebellion (1786)
Regulators, a faction in the Regulator–Moderator War (1839–1844)
Regulator, a vigilante organized in response to the Banditti of the Prairie (1835–1848)
Lincoln County Regulators, a deputized posse during the Lincoln County War (1878)
Regulatory agency, a governmental body which oversees a particular economic activity

Other uses
Regulator, a flood control structure designed to manage the return of flood water from flood plains and diversion areas to the main channel
Regulator (sternwheeler), a sternwheel-driven steamboat built in 1891

See also
All pages with titles beginning with regulator
All pages with titles containing regulator
Regulate (disambiguation)
Regulation (disambiguation)