Theodosia (Greek: Θεοδόσια) is a mountain village of Kilkis in Central Macedonia in altitude 680 meters,[2] located on the slopes of Mount Mavrovouni (part of Kroussia Mountains ), located 28.5 km .

The old name of the village, from the time of Ottoman rule, was Hatzi Bairamli or Hatzimbairamli and it is mentioned in 1918 in the Government Gazette 152A-09/07/1918 that the seat of the homonymous community that belonged to the prefecture of Thessaloniki was defined .

It was renamed Theodosia in 1927 and in 1935 was detached to the prefecture of Kilkis.

According to the 2021 census the community has a population of 147 permanent residents.

[1] This Central Macedonia location article is a stub.