Thermes is a former community in the Xanthi regional unit, East Macedonia and Thrace, Greece. Since the 2011 local government reform it is part of the municipality Myki, of which it is a municipal unit. It consists of the villages Ano Thermes, Thermes (also called Kato Thermes), Meses Thermes, Medousa, Kidaris, Diasparto, and Kottani. The population of Thermes was around 1396 inhabitants in 1991. In 2001, the population decreased to around 1,221 inhabitants. Thermes is popular for its hot spas, which can be found all around the area.
The Turkish name of Thermes is ılıca which means "spa". In Bulgarian, the community is known as Lydža (Лъджа) or Banja (Баня), the former a version of the Turkish name and the latter a calque also meaning "spa".