Nohlan is of Irish origin, meaning 'proud'. It is derived from the Gaelic surname Ó Nualláin, which translates to 'descendant of Nuallán'. Nuallán itself is a derivative of the Old Irish word 'nuall', meaning 'cloud' or 'mist'. The name Nohlan has been used as both a first name and a surname throughout history. It gained popularity in Ireland during the Middle Ages but remains relatively uncommon today, adding to its uniqueness.
The name Nohlan experienced a notable increase in popularity between 2014 and 2022, with the highest number of births recorded in those years (14 births in 2014). However, there has been a slight decline since then, with birth numbers fluctuating between 8 and 9 annually. Overall, Nohlan saw 125 births over the given period from 2007 to 2023.