Haliacmon
 The Haliacmon (Modern Greek: Αλιάκμονας Aliákmonas; formerly: Ἁλιάκμων Aliákmon or Haliákmōn; Slavic: Бистрица Bistritsa;) is the longest river in Greece with a total length of 297 km (185 mi).(In Greece there are two rivers longer than Haliakmon Maritsa (in Greek Εβρος) and Vardar (in Greek Αξιός) but the length of each one of them in Greek territory is less than that of Haliakmon which flows entirely in Greece).