YAI

YAI may stand for:
 * Yachting Association of India, the governing body for sailing in India
 * Youth Action International, a non-profit organization
 * You Am I, an Australian rock band
 * YAI: Seeing Beyond Disability, a non-profit organization that serves people with intellectual and developmental disabilities

Yai may refer to:
 * Yai River, Thailand

YAI or yai may also be an official code:
 * IATA airport code YAI: General Bernardo O'Higgins Airport, Chillán, Chile
 * ISO 639-3 language code yai: Yaghnobi language, a living, East Iranian language

People with the given name or surname Yai include:
 * Yai Nilwong (born 1985), Thai footballer
 * Anok Yai (born 1997), American fashion model of South Sudanese descent