Vityaz may refer to:

• Bogatyr, a folk or epic hero in Slavic culture

• Vityaz, the call sign of spacecraft Soyuz TM-14
• Russky Vityaz, an aircraft built by Igor Sikorsky in 1913

• Russian corvette Vityaz (1862), a Bogatyr class screw corvette
• Russian corvette Vityaz (1884), which circumnavigated the world under the command of Stepan Makarov
• RV Vityaz (1939), a Soviet research vessel in service 1949-79, now a museum ship
• RV Vityaz (1981), a Russian tanker reportedly used to supply North Korea with petroleum

• Vityaz (MVD), a Russian Spetsnaz (special forces) unit
• Vityaz (ATV), a Russian all-terrain vehicle
• S-350 Vityaz, a Russian surface-to-air missile defense system
• Vityaz-SN, a Russian 9mm Parabellum submachine-gun

• FC Vityaz Podolsk, a football club in Podolsk, Russia
• Vityaz Ice Palace, an ice arena in Podolsk, Russia
• Vityaz Chekhov, a professional ice hockey team in Chekhov, Moscow Oblast, formerly in Podolsk, Russia

• Vityaz, a historical association in the Soviet Union, precursor of Pamyat
• Machine engineering company 'Vityaz', a tracked amphibious vehicle manufacturer
• Vityaz' frostfish, the common name of Benthodesmus vityazi, a species of cutlassfish
• Vitiaz Strait, between Long Island and New Guinea
• Vitiaz languages, a group of Austronesian languages
• 71-931 "Vityaz", three-section tram cars of 71-931 and 71-931М ("Vityaz-M") models produced on LLC "PC Transport Systems"