Gya

Gya or GYA may refer to: Gya (unit), symbol for gigayears ago, a unit of time equal to one billion (short-scale, i.e. 1,000,000,000) years before present Gya, symbol for the gray, a unit of radiation exposure, equal to 100 roentgen Gya, Ladakh, a village in India Global Young Academy, an association of early-career scientists Guayaramerín Airport, an airport in Bolivia Gulf Yachting Association, a boating organization on the United States coast along the Gulf of Mexico