Jyotirishwar Thakur or Kaviśekharācārya Jyotirīśvara Ṭhākura was a Sanskrit poet and an early Maithili writer, known for the Varṇa Ratnākara, his encyclopedic work in Maithili.
Background
His was son of Rāmeśvara and grandson of Dhīreśvara.
Career
He was the court poet of King Harisimhadeva of Karnata dynasty of Mithila (r 1300–1324).