Neandreia, Neandrium or Neandrion (Νεάνδριον), also known as Neandrus or Neandros (Νέανδρος), was a Greek city in the south-west of the Troad region of Anatolia. Its site has been located on Çığrı Dağ, about 9 km east of the remains of the ancient city of Alexandria Troas in the Ezine district of Çanakkale province, Turkey. The site was first identified as Neandreia by Frank Calvert in 1865 and Joseph Thacher Clarke in 1886 and was first excavated by the German architect Robert Koldewey when he excavated in 1889.