The name Dublin is a boy's name of Irish origin.

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Quirky Favorite Baby Names in 10 Top Cities

With Galway and Ireland in play as names (not to mention Shannon and Kerry), there's no reason this one can't work, too. 

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Dublin

Irish

The name Dublin is a girl's name meaning "dark pool".

Names That Mean Pool

Two Syllable Names for Girls

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6 Letter Girl Names

Names Ending in N for Girls

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The city name Dublin ultimately derived from Irish elements dubh, meaning "dark," and lind, "pool." The dark pool in question was a tidal pool behind Dublin Castle.
 
As a baby name, Dublin is a rare but evocative choice.

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Dublin

Dublin Origin and Meaning

20 Names Similar to Dublin

The name Dublin in Nameberry Blog Posts