First-timer Martin Heydon (32) had a stunning win.
The Fine Gael candidate was first past the post in Kildare South -- outpolling well-regarded locals Labour's Jack Wall and Fianna Fail pair Sean O'Fearghail and Sean Power.
Heydon romped in with more than 2,000 votes ahead of favourite Wall, clocking up an impressive 12,755 votes.
The delighted new boy, from Crookstown, Kilcullen, told the Herald that it is now up to Fine Gael to restore the public's faith in politics and urged his party to drive through much-needed reforms.
"However, no matter what the local issues are, it will all come back to money and getting the economy right first and foremost," he said.