Marina Devovna Loshak (Russian: Мари́на Дэвовна Лоша́к, Ukrainian: Марина Девівна Лошак, surname Boskis; born November 22, 1955, Odesa, Ukrainian SSR, USSR) is a Soviet and Russian curator, gallery owner, art manager, collector, museum worker.
Co-founder, co-owner (with Maria Salina) and art director of the Proun Gallery at Winzavod (since 2007).
Art Director of the Moscow Museum and Exhibition Association Manezh (2012-2013).
[5] She married to Viktor Loshak (born 1952), Russian journalist, editor.
Their daughter Anna Mongait (née Loshak, born 1978) is a Russian journalist and TV presenter.