Maria Márkus (born 1936) is a Polish sociologist and philosopher. She was educated in philosophy at the Lomonosov University in Moscow from 1952 to 1957 and was awarded her master's degree in Poland in 1957. She moved to Hungary in 1957 and became a research fellow at the Institute of Philosophy of the Hungarian Academy of Sciences and was a founding member of the Institute of Sociology at the Academy. In 2010, a Festschrift was published in her honour.
She was a member of the “Budapest School” of Marxism, along with other philosophers and sociologists such as Ágnes Heller, György Márkus, István Mészáros, Ferenc Fehér and Mihály Vajda. The School was disbanded after the Prague Spring and many of its members forced into exile. Márkus, along with other members of the School, lost her academic position on ideological and political grounds. She moved to Australia in 1978 and worked as a Senior Lecturer in Sociology at the University of New South Wales. She has published widely on topics including on the sociology of work, industrial sociology, political sociology, the sociology of economics, stratification, philosophy and sociological theory and feminism and industry. 'The decent society' is one of her favourite themes.
She is a "friend and intellectual ally of Agnes Heller". Markus is married to Hungarian philosopher György Márkus and has two sons.