Ó Madain, Madden

Recorded as Madain, Madden, Maddin, Madigan and MacAvaddy, this is a famous Irish surname. It derives from the pre 10th century Olde Gaelic name Ó Madain, translating as the descendant of the son of the hound. The hound is famous in Gaelic heraldry having the virtues of speed, endurance, and loyalty.