Athenais (flourished 1st century BC) was a Princess from the Kingdom of Commagene whom through marriage became a Queen of Media Atropatene and possibly of Sophene. Athenais was a monarch of Armenian and Greek descent. She was one of the five children and youngest one born to King Antiochus I Theos of Commagene who reigned from 70 BC until 38 BC, and his wife, Queen Isias Philostorgos. Her paternal grandparents were the previous ruling Commagenean monarchs Mithridates I Callinicus and his wife, the Seleucid Princess and Queen Laodice VII Thea. While her maternal grandparents, was the Roman Client King of Cappadocia, Ariobarzanes I Philoromaios who reigned from 95 BC until 63/62 BC and his wife, Queen Athenais Philostorgos I. Her maternal uncle was the Roman Client King of Cappadocia, Arioba