The Laboratory of Modern Greek Dialects of the University of Patras Greece, the Laboratory for Greek Dialectology of the Ohio State University and the Tsakonian Archives of the Community of Leonidio are pleased to announce the 9th International Conference on Modern Greek Dialects and Linguistic Theory (MGDLT9), which will be held on September 18-20, 2020, at the Conference and Cultural Centre of Leonidio (Fabrica of Culture), the capital of Tsakonian land.