NS3

NS3, NS 3, NS-3, NS.3 or variation, may refer to:

Transportation

 * Bukit Gombak MRT station (station code: ), Bukit Batok, Singapore
 * Takiyama Station (station code: ), Kawanishi, Hyōgo Prefecture, Japan
 * Kamonomiya Station (Saitama), station code: ; Kita-ku, Saitama, Japan
 * RAF N.S. 3, a British NS class airship
 * New Shepard 3, a Blue Origin reusable space launch vehicle booster rocket (booster #3)
 * Blue Origin NS-3, a 2016 January 22 Blue Origin suborbital spaceflight mission for the New Shepard

Other uses

 * Argyle-Barrington (constituency N.S. 03), Nova Scotia, Canada
 * NS3 (HCV), hepatitis C virus non-structural protein 3
 * Novelty seeking level 3, extravagance
 * Netscape Navigator 3.0; a webbroswer
 * ns (simulator), version ns-3, computer network simulation software