Ayutthaya

Ayutthaya, Ayudhya, or Ayuthia may refer to:


 * Ayutthaya Kingdom, a Thai kingdom that existed from 1350 to 1767
 * Ayutthaya Historical Park, the ruins of the old capital city of the Ayutthaya Kingdom
 * Phra Nakhon Si Ayutthaya province (locally and simply Ayutthaya)
 * Phra Nakhon Si Ayutthaya district, the capital district
 * Phra Nakhon Si Ayutthaya (city), the city in Phra Nakhon Si Ayutthaya Province
 * HTMS Sri Ayudhya, a ship of the Royal Thai Navy
 * Si Ayutthaya Road, a road in downtown Bangkok
 * Bank of Ayudhya, a Thai commercial bank
 * Ayuthia (cicada), a genus of cicadas
 * Ayutthaya United F.C., football club in Thailand
 * Bang Pa-in Ayutthaya F.C., football club in Thailand