Archelaus (Greek: Ἀρχέλαος; born before 8 BC; died 38 AD) was a Cappadocian Prince from Anatolia and a Roman client king of Cilicia Trachea and Eastern Lycaonia. He is sometimes called Archelaus Minor (Minor which is Latin for the younger) and Archelaus II to distinguish him from his father Archelaus of Cappadocia.
Archelaus was a Monarch of Greek, Armenian and Persian descent. He was the fifth and final Archelaus to be named after the first Archelaus (his paternal great-great-grandfather), who was a General of King Mithridates VI of Pontus. He was the son and heir of the Roman Client King Archelaus of Cappadocia from his first marriage to an unnamed Princess from Armenia and his sister was the Cappadocian Princess Glaphyra. There is a possibility that his parents may have been distantly related. His father is descended from Mithridates VI. His mother may have been a daughter of King Artavasdes II of Armenia (reigned 53 BC-34 BC) of the Artaxiad Dynasty. The father of Artavasdes II was Tigranes the Great, who married Cleopatra of Pontus, a daughter of Mithridates VI from his first wife, his sister Laodice, thus Artavasdes II was a maternal grandson to Mithridates VI and Laodice. Archelaus was the maternal uncle of Glaphyra’s children: Tigranes, Alexander and her unnamed daughter.