Agas or AGAS may refer to: Agăș, a commune in Bacău County, Romania Agăș River, Romania Amino-acid N-acetyltransferase, an enzyme Neoabietadiene synthase, an enzyme Ralph Agas (1540–1621), English land surveyor Agas operations, Australian reconnaissance commandos operations in Borneo during World War II Agha (Ottoman Empire)