• Born date: 1632-02-16
  • Born in: n.a.
  • Death date: 1688-07-11

Somdet Phra Narai Maharat (Thai: สมเด็จพระนารายณ์มหาราช; 1633 – 11 July 1688) or Somdet Phra Ramathibodi III (Thai: สมเด็จพระรามาธิบดีที่ 3) was the king of Ayutthaya from 1656 to 1688 and arguably the most famous Ayutthayan king. His reign was the most prosperous during the Ayutthaya period and saw the great commercial and diplomatic activities with foreign nations including the Persians and the West.