YS may refer to: Yellow Submarine, the eleventh album by The Beatles Esat Young Scientist Exhibition Régional Compagnie Aérienne Européenne, IATA airline code YS Youngstown and Southern Railway YS, an album by Il Balletto di Bronzo Your Sinclair magazine, commonly abbreviated as YS YS Flight Simulation System 2000, a free, downloadable flight simulator Youth Specialties… (More on Ys)