Kastri () may refer to several places in Greece:
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Kastri, Arcadia, a village in the municipality North Kynouria, Arcadia
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Kastri, Attica, a city quarter in Nea Erythraia in Athens
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Kastri, Crete, a village in the Chania regional unit
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Kastri, Evrymenes, a village in the Ioannina regional unit
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Kastri, Gavdos is the capital of the island of Gavdos in the Chania regional unit
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Kastri, Cythera, an ancient settlement on the island of Cythera
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Kastri, Larissa, a village in the municipal unit Lakereia, Larissa regional unit
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Kastri, Phocis, a medieval village on the site of Delphi
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Kastri, Preveza, a village in the municipal unit Fanari, Preveza regional unit
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, a prehistoric settlement on the island of Syros, Syros-Ermoupoli regional unit; see Syros#Kastri culture
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Kastri, Thesprotia, a village in Thesprotia
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Kastro, Thasos, also known as Kastri
