Mamiova (née Rafailovich) Khaya-Sheina (Chaya-Scheina) Sofia Vulfovna (8 March 1909, Riga — September 1991, Riga) — pianist and teacher.

In 1930, Khaya-Sheina Mamiova graduated from the Latvian Conservatoire (class of Prof. A. Sokolovski). During her studies, she worked as an accompanist in the violin class of Prof. A. Metz. In 1930–31, she undertook advanced studies at the Russian Conservatoire in Paris. In 1932, she returned to Riga.

She worked as an accompanist in 1932–39 at the private vocal studio of G. Yadlovker, in 1937–40 at the ballet studio of S. Budo, and in 1940–41 at the Latvian Conservatoire. From June 1941, she was in evacuation: in 1941–42 in Gorky, and in 1943–45 in Frunze, where she worked as a music editor at Kyrgyz Radio.

In 1945, she returned to Riga and continued her work as an accompanist: in 1947–57 at the Latvian Conservatoire (classes of V. Krampe and A. Vilyumanis), in 1958–61 at the Jāzeps Mediņš Music College, and in 1961–69 at the Latvian Opera and Ballet Theatre.