From the common Late Latin name Julianus, a derivative of Julius. In classical times Julianus was a name borne not only by various minor early saints, but also by the Roman emperor Julian ‘the Apostate’, who attempted to return the Roman Empire from institutionalized Christianity to paganism. For many centuries the English name Julian was borne by women as well as men, for example by the Blessed Julian of Norwich (c.1342– after 1413). The differentiation in form between Julian and Gillian did not develop until the 16th century. Julian is still occasionally used as a girl's name. Notable bearers include the British classical guitarist Julian Bream (b. 1933) and the British jazz pianist and bandleader Julian Joseph (b. 1966).
Spanish: topographic name for someone who lived by a dogwood tree, Spanish cornejo (Latin corniculus), or a habitational name from any of the various minor places named Cornejo, for example in the provinces of Almería, Burgos, and Ciudad Real.