Cloonkeen derives from the Irish Cluainín, meaning "little meadow", a diminutive that suggests a modest patch of ground rather than any grand geographical feature, and yet such names have a way of anchoring whole communities across centuries of change.

Beyond its name, the available record for this particular Cloonkeen is sparse, which is itself not without meaning. Galway is a county dense with overlapping histories, from the Connacht chieftaincies that dominated the medieval period through the upheavals of plantation and famine, and small townlands like this one absorbed those changes without always leaving a substantial documentary trace. The name alone places it within a pattern of Irish landscape terminology that predates written records, passed down through the compilers of the Down Survey in the seventeenth century and later standardised by the Ordnance Survey in the nineteenth.