64%RatingSave Gender Masculine Usage Irish Pronounced Pron. RWU-an [key·IPA] Meaning & History From Old Irish Rúadán, derived from rúad "red" combined with a diminutive suffix. This was the name of the founder of the monastery of Lorrha in the 6th century. Related NamesFamily Tree·Details VariantRowanOther Languages & CulturesRoy(Dutch) Rowan, Roy, Rowen(English) Ruadh(Medieval Irish) Ruadh(Medieval Scottish) Rúadán(Old Irish) Roy(Scottish) Surname DescendantsÓ Ruadháin, Rowan, Ruane(Irish) Categories colors, diminutives, red