Semachidae or Semachidai (Ancient Greek: Σημαχίδαι) was a deme of ancient Athens, in the district of Epacria.
[1] The site of Semachidae is tentatively located near modern Vredou.
[2][3] This article incorporates text from a publication now in the public domain: Smith, William, ed.
Dictionary of Greek and Roman Geography.
This article about a location in Ancient Attica is a stub.