Family name Βλάχου (Vlachou 
, Βλάχου ) , in the entire world, is a common last name. The surname Βλάχου is characteristic of Greece, where it is quite a common surname, Cyprus, and Slovakia, where it is a rare surname. Measured by absolute frequency, it is the most numerous in Greece, Cyprus, and Germany.
| ελένη βλάχου Greek journalist (1911–1995), GR (b. 1911) |
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| φωτεινή βλάχου Greek art historian, GR (b. 1975) |
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| βασιλική βλάχου Greek actress, GR |
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| σωτηρία βλάχου Greek politician, GR |
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| αγνή βλάχου Greek actress, GR |
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| ιωάννα βλάχου Greek volleyball player, GR (b. 1981) |
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| φρόσω βλάχου Greek basketball player, GR (b. 1982) |
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