Madadhan

Madadhan is an Irish name commonly anglicised as Madden and Madigan. Whilst originally a forename, it also became the surname Ó Madadhan, meaning "descendant of Madden".

Notable people with the surname Ó Madadhan include

 * Ambrose Ó Madadhan, first Prior of Portumna Priory
 * Anmchadh Ó Madadhan, Chief of the Name, died 1636
 * Breasal Ó Madadhan, Lord of Síol Anmchadha and Chief of the Name, died 1526
 * Cathal Ó Madadhan (died 1286), King of Síol Anmchadha
 * Diarmaid Cleirech Ua Madadhan (died 1207), King of Síol Anmchadha
 * Diarmaid Ua Madadhan (died 1135), King of Síol Anmchadha and Uí Maine
 * Domhnall Ó Madadhan, chief of Síol Anmchadha, fl. 1567 – after 8 March 1611
 * Eoghan Carrach Ó Madadhan, Chief of Síol Anmchadha, fl. 1451
 * Eoghan Mór Ó Madadhan, Chief of Síol Anmchadha, fl. 1371–1410
 * Eoghan Ó Madadhan, Chief of Síol Anmchadha, fl. 1314–1347
 * John Ó Madadhan, Lord of Síol Anmchadha and Chief of the Name, died 1556
 * Madudan Mór Ua Madadhan, King of Síol Anmchadha, died after 1158
 * Madudan Óg Ó Madadhan (died 1235), King of Síol Anmchadha
 * Madudan Reamhar Ua Madadhan, Chief of Síol Anmchadha, 1069–1095
 * Melaghlin Ua Madadhan (died 1188), King of Síol Anmchadha
 * Murcadh Ó Madadhan, Chief of Síol Anmchadha, died 1451
 * Murchadh Ó Madadhan, King of Síol Anmchadha, died 1327
 * Murchadh Reagh Ó Madadhan, Chief of Síol Anmchadha, died 1475
 * Owen Ó Madadhan, Lord of Síol Anmchadha and Chief of the Name, fl. 1475
 * Richard Ó Madadhan, Prior of Portumna Priory in 1691