.

Mikro Dereio is a village in the central part of the Evros regional unit in Greece. It is situated on the left bank of the river Erythropotamos, in the Eastern Rhodope Mountains. The border with Bulgaria is 5 km to the north. Mikro Dereio is on the Greek National Road 53. In 2001 its population was 255 for the settlement and 2,103 for the community, making it the most populous community of the municipal unit of Orfeas. The community consists of the villages Mikro Dereio, Geriko, Goniko, Mega Dereio, Petrolofos, Roussa and Sidirochori.

Population
Year Village population Municipal district population
1878 256 -
1912 220 -
1920 180 -
1981 - 2,067
1991 296 -
2001 252 2,103
History

The village was founded by the Ottoman Turks in the 14th century, it was known as Malak Dervent (Малък Дервент) in Bulgarian. According to Anastas Razbojnikov, its 1830 population was 210 Bulgarian families/houses, 256 in 1878, 220 in 1912 of which 200 were Bulgarian exarchists. According to professor Lyubomir Miletich, the 1912 population was around 200 Bulgarian families. After a brief period of Bulgarian rule between 1913 and 1919, it became part of Greece.
Person

Angel Popkirov (Ангел Попкиров, 1881-?), Bulgarian revolutionary leader, member of VMORO