Vankalai or Vangalai or Vangkaalai (Tamil: வங்காலை vaṅkālai) is a predominantly fishing and farming village situated in Mannar District of the Northern Province of Sri Lanka. It lies along the Naanaattan Road with the sea on its west connects to Indian Ocean. The shores from Vankalai 20 km south to the ancient Tamil subsidiary port of Kudiramalai formed the world's most famous pearl fishing banks in the classical and medieval periods. Its northern boundary is the historic Hindu shrine of Thiru Ketheeswaram.