Dato' Masir anak Kujat (born 7 August 1954) is a Malaysian politician of Iban descent. He has served as Member of Parliament (MP) for Sri Aman from March 2008 until November 2022. He has been a member of the Parti Sarawak Bersatu (PSB) since 7 March 2019. He left PSB to become an independent MP on March 2022. Masir lost his Sri Aman federal seat on the November 2022 Malaysian general election to Doris Sophia Brodie from Gabungan Parti Sarawak in a 4-way fight.