Kuksi (, ) is a noodle dish in Koryo-saram cuisine: cuisine of the ethnic Koreans of the mainland former Soviet Union. It is served cold and often spicy with beef. It is the Koryo-saram version of janchi-guksu.
The dish is a popular menu item at Cafe Lily, an Uzbek-Korean restaurant, located in Brooklyn, New York City. The Moscow Times describes the kuksi served at Koryo-saram in Moscow's K-town as "[having] quite the kick".
Koryo-mar kuksi (, ) is a dialectal form of the Korean word guksu () meaning "noodles," often referring to janchi-guksu by default.