Fedlimid Rechtmar (Feidhlimidh Reachtmhar or Feidhlim the Lawgiver), son of Tuathal Teachtmhar, was a legendary High King of Ireland of the 2nd century. His name comes from the many wise laws he established in Ireland during his reign.
He took the throne by overthrowing Mal, who had killed his father. He instituted a law similar to the Roman lex talionis, that is, an eye for an eye. and died in his sleep after ruling for nine years. The completion of the road construction around Tara is attributed to him.