Datuk Wira Hajah Mas Ermieyati binti Samsudin (Jawi: مس إرمياتي بنت شمس الدين; born 13 November 1976) is a Malaysian politician who has served as Deputy Minister in the Prime Minister's Department in charge of Parliament and Law in the Barisan Nasional (BN) administration under Prime Minister Ismail Sabri Yaakob and Minister Wan Junaidi since August 2021. She served as the Deputy Minister of Entrepreneur Development And Cooperatives in the Perikatan Nasional (PN) administration under former Prime Minister Muhyiddin Yassin and former Minister Wan Junaidi from March 2020 to August 2021 and the Member of Parliament (MP) for Masjid Tanah since May 2013. She served as the Deputy Minister of Tourism and Culture in the Barisan Nasional (BN) administration under former Prime Minister Najib Razak a