NS4

NS4 may refer to:

Non-structural protein 4

• NS4 (HCV) - two viral proteins found in hepatitis C virus:
  • NS4A
  • NS4B
• Dengue virus NS4a and NS4b
• West Nile virus NS4A and NS4B

Transportation

• New Shepard 4, a Blue Origin reusable space launch vehicle booster rocket (booster #4)
• Blue Origin NS-4, a 2016 April 2 Blue Origin suborbital spaceflight mission for the New Shepard
• RAF N.S. 4, a British NS class airship
• Choa Chu Kang MRT/LRT station (station code: NS4) abbreviated as (NS4/BP1); Singapore
• Uguisunomori Station (station code: NS04), Kawanishi, Hyōgo Prefecture, Japan
• Higashi-Miyahara Station (station code: NS04), Kita-ku, Saitama, Japan
• Toyota NS4 - a plug-in hybrid concept car unveiled at the January 2012 North American International Auto Show.

Other

• Bedford (provincial electoral district), constituency N.S. 04; Nova Scotia, Canada
• Novelty seeking level 4, disorderliness
• NS-4; a fictional robot from the 2004 film, "I, Robot"
• Netscape Communicator - also known as Netscape 4, or NS4

See also

• NS (disambiguation)
• 4 (disambiguation)