Joan Burton has been elected on the first count in Dublin West, with 9,627 votes. The quota was 8,495.
82.3% of voters tuned out to vote in the constituency.
FG's Leo Varadkar won 8,359 of the vote, with Brian Lenihan on 6,421.
"I am thrilled and honoured to have been re-elected by the people of Dublin West," said Deputy Burton on her Twitter page.
"Thank you for all the support."
Ms Burton also said she expected a large number of seats to go down to the wire late tomorrow.
“I think there will be a large number of nail-biting final seat counts. I think we will all have our fingers chewed down by this time tomorrow,” she said.
“I think it’s too close to call in a lot of constituencies.”
Joan Burton Lab - 9,627 (elected)
Kieran Dennison (FG) 3,190
Donnelly Paul (SF) 2,597
Clement Esebamen (Ind) 280
Joe Higgins (SP) 8,084
Brian Lenihan (FF) 6,421
David McGuinness (FF) 623
Patrick McNulty (Lab) 2,686
Roderic O'Gorman (GP) 605
Leo Varadkar (FG) 8,359
Joan Burton's 1,132 surplus votes will now be distributed.