Tadhg Riabhach Ó Dubhda, King of Uí Fiachrach Muaidhe, died 1432.
Tadhg Riabhach is the last Ó Dubhda expressly listed as King of Uí Fiachrach Muaidhe in any contemporary or near-contemporary document. Araile do fhlathaibh Ua nDubhda says of him: