My best friend was called Oisín. He and everyone we knew pronounced it Osh-een. We called him Osh or Oshbosh though I have heard of it being pronounced similar to the name "Roisin"; as Oasheen (Say Ocean with a long "e" sound).
― Anonymous User 3/15/2011
3
Oisín is pronounced USH-een in Irish, not OSH-een! OSH-een would have to be spelt Óisín, which isn't a name.
― Anonymous User 12/12/2009
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Osh-een is the way it is pronounced in my part of the world, around the Derry/Donegal area. It is not incorrect. As I'm sure you know, accents can differ hugely all over Ireland and people in certain areas will pronounce things the same in English as they traditionally would have over the centuries in Irish. Just like with the different Kee-va/Kwee-va pronunciations of Caoimhe :) Neither way is technically right or wrong.
― Anonymous User 8/19/2012
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www.babynamesofireland.com says it is pronounced "osh + een"He was the son of the legendary warrior Fionn Mac Cool and the goddess Sive. He is best remembered for his love for "Niamh of the Golden Hair" with whom he spent 300 years in Tir-na-nOg, ("Land of Eternal Youth".
― Anonymous User 4/25/2007
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It is pronounced Ush-een. Oisín left the Fianna to go to Tír na nÓg (land of the young) where one would never grow old. A woman (forgot her name) brought him there. After, what he thought was only a few weeks he asked to go back to his own land to see his people. The woman allowed him to, but warned him not to get off his horse. Long story short, it was about 300 years later and all his friends were dead. He fell off the horse and became very old. He supposedly told his story to St. Patrick (patron saint of Ireland) before he died.