Diomidis Anastasiou[citation needed] Kyriakos (Greek: Διομήδης Κυριάκος) (1811, Spetses – 1869, Pisa) was a Greek author, politician and Prime Minister of Greece.

Kiriakos was born in 1811 on the island of Spetses to a family of Arvanite origin.

[1] He was the younger brother of Ioannis Kyriakos, a vice-admiral who was killed in the siege of Messolonghi.

He studied law at the universities of Pisa and Paris.

Kyriakos authored several books on law and history.