The name Delaney comes from the Irish O’Dubhshlaine. Its earliest anglicized form is O’Dulany with a broad `a.’ Delane is another variant (the O’ has been long since dropped). It is sometimes mistakenly associated with the Limerick surnames O’Duillean, Dillane and Dillin, though there is no relation. Dubh means black or dark. That’s the easyRead more..