Delaney (surname)

Delaney is an Irish surname derived from the Gaelic "Ó Dubhshláine", "Dubh" meaning black and "Sláine" for the River Sláine (Slaney). DeLaney is also of Norman origin. There is a branch of Dulaneys in the United States who trace back to a Thomas Delany. Thomas's son, Daniel, claimed to have been descended from Dr. Gideon Delaune, a Huguenot physician and theologian and founder of the Apothecaries' Hall. Hence, there are multiple discussions among genealogical circles as to the origin of Delaney since it can be anglicized Gaelic or anglicized French.
Over time a few names derived from the names "DeLaney" and "Ó Dubhshláine" including Delaney, Delany and Dulaney.