Leo IV of ArmeniaLeo (or Leon) IV of Armenia
) was king of Armenia
, ruling from 1301
, ruling along with his uncle Hethum II
. He was the son of Thoros III of Armenia
He was married to his cousin Marie de Lusignan, daughter of Princess Isabella of Armenia and Amalric de Lusignan.
In 1307 Leo and his co-ruler Hethum II were murdered while visiting the Mongol emir Bilarghu at Navarza.