No, it's not a misspelling of Rhea, I promise! I found it on a Hebrew names site. It's pronounced RAY-uh and means "friend."What do you think? It can also be spelled Raya, Reia, or Reiah.
Reah is okay. It looks like someone making fun of a native speaker of Japanese trying to say Leah though. Also the spelling Raya looks like it should be said RAH-yah (similar to RIE-ah but not quite the same) like it is in Russian and Bulgarian.