Athanasia "Sia" Anagnostopoulou (Greek: ??a?as?a "S?a" ??a???st?p?????; born March 1959) is a left-wing Greek politician and academic who is currently the Alternate Minister of Foreign Affairs in the Second Cabinet of Alexis Tsipras.
From 18 July to 28 August 2015, she served as the Alternate Minister for European Affairs in the First Cabinet of Alexis Tsipras.
Anagnostopoulou is currently an associate professor of history at the Panteion University, and has been a visiting professor at the New York University, the University of Cyprus and the School for Advanced Studies in the Social Sciences.