Conley \c(o)-nley, con-ley\ as a boy's name is of Gaelic origin. Anglicized form of Conlaodh (Gaelic), possibly from "connla" meaning "pure, chaste, sensible" and the personal name Aodh. Saint Conlaodh or Conl? was the first bishop of Kildare, and a contemporary of Saint Brighid.
For more information, see also the related name Conlan.