by Domhnall (guest)
4/16/2004, 10:02 PM
The surname "Madden" is anglicized from the Irish-Gaelic "Ó Madadháin," but this is modernly shortened to just "Ó Madáin" (because the 'dh' is silent).
The root is the Gaelic word 'mada' meaning 'dog,' with the common diminutive suffix '-án' added.
This name has always been especially prominent in east Galway, even now, as they were once lords of that territory.