Conagher is of American origin, derived from the Irish surname 'Ó Conghaile'. It translates to 'descendant of Connachar', with 'Connachar' meaning 'unanimous' or 'intense'. This name gained popularity in the United States due to its use in Zane Grey's novel and subsequent film adaptation, 'Conagher'. The name has a strong, rugged appeal, often associated with the Western genre.
The name Conagher experienced a notable rise and fall in popularity over the period from 1995 to 2018, with peak years being 1997 (5 births) and 2006 (6 births), but overall showing relatively few births annually.