Fine Gael and Fianna Fáil have confirmed their candidates to run in the two Dublin bye-elections set for 5 June.
Former RTÉ economics editor George Lee was nominated as the sole Fine Gael candidate for the Dublin South bye-election.
No other name was put forward at close of nominations this evening, which meant Mr Lee was the only candidate going forward to the convention.
He will now contest the 5 June poll which was brought about due to the death of Séamus Brennan.
Speaking as he was nominated, Mr Lee said: 'I believe that Fine Gael is the political party best placed to provide the new leadership and vision that the country desperately needs.'
There are already two sitting Fine Gael TDs, Alan Shatter and Olivia Mitchell, in the Dublin South constituency that has traditionally been volatile and hotly contested.
Communications Minister Eamon Ryan holds a seat there for the Green Party.
Mr Lee's entry into the race will put pressure on Labour's Alex White.
Shay Brennan, the son of the late Seamus Brennan, has been selected to run for Fianna Fáil in the election.
In a vote tonight Mr Brennan won by 52 votes to 40 against Senator Maria Corrigan.
In his acceptance speech Mr Brennan said that the decision to nominate him was first and foremost a tribute to his late father and an acknowledgement of the very significant contribution that he had made to local and national politics.
Meanwhile, Senator Ivana Bacik has been confirmed as the Labour Party candidate for the Dublin Central bye-election, while Paschal Donohoe is the Fine Gael candidate.
The former Taoiseach's older brother Cllr Maurice Ahern is Fianna Fáil's candidate to contest the Dublin Central bye-election.
He defeated Cllr Mary Fitzpatrick in a vote at the convention in Dublin this evening.
Cllr Tom Stafford withdrew his name from the nomination.