Marietta Horster (born 8 June 1961) is Professor of Ancient history at the University of Mainz.
Horster studied Ancient History, Latin and Political Science at the Universities of Lausanne, Bonn and Cologne and completed her studies in 1989 in Cologne with a master's degree in Ancient History, Latin and Political Science.
From 1990 to 1994 she was Research Associate at the Department of Ancient History of Werner Eck at the University of Cologne, where she was awarded her doctorate in 1995.
[2] From 1995 to 2001, Horster taught as a research assistant at the Institute of Classical Studies at the University of Rostock.
[3] In 2010, she succeeded Leonhard Schumacher as Professor of Ancient History at the University of Mainz.