The Archeological Museum of Eleusis is a museum in Eleusis, Attica, Greece. The museum is located inside the archaeological site of Eleusis. Built in 1890, by the plans of the German architect Kaverau, to keep the findings of the excavations, and after two years (1892) was extended under the plans of the Greek architect J. Mousis.

Elefsina or Eleusis is a suburban city and municipality in Athens metropolitan area. It belongs to West Attica regional unit of Greece. It is located in the Thriasio Plain, at the northernmost end of the Saronic Gulf. North of Elefsina are Mandra and Magoula, while Aspropyrgos is to the northeast.