Niesten may refer to:

• Niesten (crater), an impact crater on Mars
• Coen Niesten (born 1938), Dutch racing cyclist
• Louis Niesten (1844–1920), Belgian astronomer

• International Temperature Scale of 1990
• International Tennis Federation
• International Tennis Hall of Fame
• International Terminal railway station, Brisbane
• International Terminal station, Brisbane
• International Terrestrial Reference Frame
• International Terrestrial Reference System and Frame
• International terrorism
• International Textile, Garment and Leather Workers' Federation
• International Textile, Garment and Leather Workers Federation
• International Theatre School Jacques Lecoq
• International Thespian Society
• International third position
• International Third Position
• International Thomson Organization
• International Thriller Writers
• International Time Capsule Society
• International Times
• International Times magazine
• International Tin Council
• International Tour de Toona
• International trade
• International Trade Administration
• International Trade Canada
• International Trade Commission