Rotary may refer to:

Science, engineering and technology

  • Rotary motion<!--keep at top-->
  • Rotary dial, a rotating telephone dial
  • Rotary engine (disambiguation), multiple types of engines called "rotary"
  • Rotary latch
  • Rotary milking shed, a type of milking shed used in the dairy industry
  • Rotary snowplow, one type of railroad snowplow used especially for deep snow removal
  • Rotary system, a type of pre-electronic telephone switch
  • Rotary table (drilling rig), a device used to apply directional force to a drill string
  • Rotary tiller, a motorised cultivator
  • Rotary woofer, a type of loudspeaker capable of producing very low frequency sound
  • Rotary wing aircraft

Organisations and enterprises

  • Rotary International, or Rotary Club, an international service organization founded in the United States
  • Rotary Foundation, non-profit foundation of Rotary International
  • Rotary Scholarships, scholarships offered by the organization
  • Rotary Jaipur Limb Project, a U.K. charity which provides prosthetic limbs to amputees in India and several African countries
  • Rotary Watches, a Swiss watchmaker

Other uses

  • Rotary (intersection) or roundabout, a circular roadway intersection
  • "The Rotary", a song by Andy Partridge from Take Away / The Lure of Salvage