Mya Thwin, known as Mother Sayamagyi (Burmese: ??????, pronounced [mja? ?w?`?]; 12 March 1925 – 28 January 2017) was a Theravada Buddhist teacher who has established centers for vipassana meditation around the world.
She was a senior disciple of Ba Khin, a vipassana master, and fulfilled his aspiration to teach Buddhist meditation in the west.