The topic of this work is Serbian schools and the teaching of Serbian language in Greece in the 20th century. During the first half of the 20th century the existence of Serbian people in Turkey (later in Greece) was acknowledged through school and church. Thanks to the Serbian schools, Serbs as an invisible minority became a visible one. In the second half of the 20th century there is primarily a teaching of Serbian language as a foreign language. During this period, Serbian was accepted primarily by Greeks at courses and private classes. At the beginning of the nineties in the 20th century because of the war in the territory of Yugoslavia, a large number of refugees went to Greece. Teaching of Serbian as a native language was organized only ten years later (at the beginning of 21st century). In some places, the schools are located in consular sections and have the assistance of the country of origin (Thessalonica, Katerini) while in Hani (Crete) immigrants organized them-selves without the assistance from the country of origin. By studying Serbian schools and the teaching of Serbian language, this work considers relation towards language as a symbol of ethnic identity - at the individual level, at the level of receiving country and at the level of country of origin.