The Judicial Commission has appointed Chotiwat Luengprasert as the country's 48th Supreme Court president.
Mr Chotiwat, who currently serves as president of the Labour Case Division of the Supreme Court, will succeed incumbent Piyakul Boonperm when she retires at the end of September.
Mr Chotiwat, who is the most senior judge in line for the post, will serve as the Supreme Court president for one year before his mandatory retirement.