Thiriyai or Tiriyayi (Tamil: திரியாய் tiriyāy) is a small Tamil village in the eastern Trincomalee District of Sri Lanka and is an old seaport of the Jaffna Kingdom. It is situated about 25 miles north of Trincomalee town through Nilaveli. Thiriyai is among the ancient Tamil villages of the district and had over 700 families. But due to the ethnic conflict, most families fled the village and are now living elsewhere in the country or overseas.