Y8

Y8 may refer to:


 * Shaanxi Y-8, a Chinese transport aircraft
 * KJ-200, also known as by the NATO reporting name "Moth" or "Y-8 Balance Beam" is a Chinese Airborne early warning and control aircraft.
 * LNER Class Y8, a class of British steam locomotives
 * Yangtze River Express, a IATA airline designator
 * Youth 8 summit, more commonly known as the Y8 summit, the youth counterpart to the G8 summit