Devenny is a unique, contemporary given name of Irish origin. It's derived from the ancient Irish surname Ó Déamhna, which means 'descendant of Déamhan,' an old personal name possibly meaning 'follower' or 'student.' The use of Devenny as a first name appears to be relatively modern, perhaps influenced by trends towards unique and personalized monikers in recent decades. It's pronounced /dɪˈvɛni/ with the stress on the second syllable.
"In 2014, there were five babies named Devenny."