The name Reon is a boy's name meaning "language". Reon.
From the experts:
Reon is a fairly rare name, getting just a few dozen uses each year in the US, UK and New Zealand. The name Reon has two possible origins. It could be an alternative spelling of the Celtic name Rion, meaning king, or could be a name deriving from the Maori word 'reo' meaning language. Either way, given the popularity of other "eon" names like Leon, Gideon, Simeon and even Napoleon, Reon is a name that deserves some further consideration.