Jeyaveera Cinkaiariyan (Tamil: செயவீர சிங்கையாரியன்) was the Aryacakravarti king of the Jaffna Kingdom in modern-day northern Sri Lanka, who had a military confrontation with a southern chief known as Alagukonar al.
According to traditional sources, Alagkkonara defeated Jeyaveera's naval and land forces and assumed royal power in the southern Gampola Kingdom.
Later, King Harihara II's brother Yuvaraja Virupanna invaded Sri Lanka from Karnataka, defeated Alagkkonara and established a pillar of victory there.
He or his successor is credited with having left behind an inscription in the South Indian Hindu temple Rameswaram about renovating its sanctum sanctorum.
It indicated the stones for the renovations were shipped from the city of Trincomalee in present-day eastern Sri Lanka.