Irish surname turned given name, from the Gaelic Ó Nualláin meaning 'descendant of Nuallán' (champion); gained traction in the US and Australia as a first name in the late 20th century.
Vibe
gentle
How it ages.
Modern and crisp; aging very well as an Irish surname name with broad appeal.
The cultural moment.
Rising in the US from the 1990s onward; also climbing in France since 2010 where it fits the surname-name trend. Also spelled Nohlan. Currently ranks #65 in the US and #78 in France.