On 28 December 1999, the Metro was named after Karen Demirchyan, the man who was responsible for changing the status of the Rapid Tram system into becoming a Metro system, after he was killed two months earlier in a terrorist attack on the Armenian parliament.
Pada 28 Desember 1999, nama Metro diganti menjadi Karen Demirchyan, orang yang berhasil mengubah status dari Trem Cepat menjadi sistem Metro, setelah terbunuh dua bulan sebelumnya oleh serangan teroris di Parlemen Armenia.