Aoi Mac Ollamain or Ai Mac Ollamain is a god of poetry and one of the Tuatha Dé Danann in Irish mythology. Ai is the son of Olloman, who saved him from the king's decree that Aoi be killed, a decree made in response to a druid's prediction that Aoi would be born with special powers.
References
Aoi Mac Ollamain Wikipedia(Text) CC BY-SA