Crousi () is the name of a Thracian tribe that inhabited the Pallene peninsula.The Cambridge Ancient History, Volume 3, Part 2: The Assyrian and Babylonian Empires and Other States of the Near East, from the Eighth to the Sixth Centuries BC by John Boardman, I. E. S. Edwards, E. Sollberger, and N. G. L. Hammond, , 1992, page 601-602. They are mentioned by Dionysius of Halicarnassus.
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See also Thracian tribes