Apollonia, is a village in Sifnos, Cyclades, Greece. It is the capital (chora) and largest village of the island with 869 inhabitants as of the 2011 Greek Census. It is the head of the homonymous municipality, which includes the villages Vathy, Kamares, Kastro, Platys Gialos, Kato Petali, Faros and Chrysopigi and has a total population of 1691 residents. It is named after the god Apollo of the Greek mythology.(wikipedia)