Rugby hero Shane won't line out for FG
The former Leinster hooker, inset, spent more than a week considering the offer.
He told the Irish Independent last night that after holding further discussions with party figures at the weekend he opted against a run for the party.
Well-placed sources said that Mr Byrne's decision did not come as a surprise given his close connections with Fianna Fail.
"We always thought it was a long shot, but you never know for the future. To be honest, there's always a risk, running so-called celebrity candidates can backfire," said a party source.
The father-of-two told this newspaper last week that he had a number of commitments that he needed to consider. Mr Byrne lives with his wife and children in North Wexford and runs a waste collection firm in Aughrim, Co Wicklow.
He is the second high-profile sportsperson to be approached by Fine Gael in a matter of weeks, after Olympic silver medallist Kenneth Egan was confirmed as a local election candidate in the Clondalkin ward in west Dublin.