Laciadae or Lakiadai () was a deme of ancient Attica on the Sacred Way between Sciron and the Cephissus, and near the sacred fig-tree. It is celebrated as the deme to which the family of Miltiades and Cimon belonged.Plutarch, Cim. 4, Alc. 22; Cicero de Off. 2.1. 8; Hesych.; Suid. It took its name from the Attic hero Lacius.A Dictionary of Greek and Roman biography and mythology, La'ciusPausanias, Description of Greece, 1.37
The site of Laciadae is tentatively located at .
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