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|   "valiant", "rye clearing"   Rylee, Rhiley, Rilie, Reilly, Reily, Ryleigh | 
Riley is a given name for males and females, which first appeared as Raghallach, which was originated on a man who died in the Battle of Clontarf. Its source gives its meaning as "valiant".
Though originally a given name, it is more popular and well known as a surname. The surname's first variant is Ó Raghallaigh (Descendent of/Of Raghallach) which was later adapted in English as O'Reilly which itself has been anglicized into "Reilly". The surname "Riley" is an over time translated version of Reilly. It currently is #8 in England and Wales, #9 in Northern Ireland, #15 in Scotland, #30 in Australia and New Zealand, #64 in Canada, #156 in the United States, and #198 in the Netherlands.
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