ⓘ S23 may refer to: S23-Wiki, a project giving statistics about wikis Patent Reform Act of 2011, America Invents Act, a bill introduced in the 112th United States ..

                                     

ⓘ S23

S23 may refer to:

  • S23-Wiki, a project giving statistics about wikis
  • Patent Reform Act of 2011, America Invents Act, a bill introduced in the 112th United States Congress.
  • HMS Repulse S23, a 1967 British Royal Navys Resolution-class ballistic missile submarine
  • Chilean submarine Hyatt S23, a 1973 Oberon-class submarine in the Chilean Navy
  • S23: Do not breathe gas/fumes/vapour/spray appropriate wording to be specified by the manufacturer, a safety phrase in chemistry
  • British NVC community S23, a swamps and tall-herb fens community in the British National Vegetation Classification system
  • 180 mm gun S-23, a Soviet heavy gun of Cold War era
  • USS S-23 SS-128, a 1920 S-class submarine of the United States Navy
  • S-23 drug, an investigational selective androgen receptor modulator