From etymology section:
"[Beorn] sometimes was indeed used as a name. It is related to the Norse name Bjorn which, in turn, may suggest a connection to berserkers."
I haven't found any usage of Beorn as a personal name (some quick searches on google), and neither about the proposed connection between bjorn and "berserkers". --Morgan 22:36, 2 January 2011 (UTC)
As is stated in the article on Beornings, it seems to be unknown if Beorn was one of the Beornings or if the "race" was named after him. Can we safely say that Beorn was a Beorning, or would that be too much fanon? --Morgan 23:32, 2 January 2011 (UTC)