The Ireland Thinks voter survey shows Taoiseach Micheál Martin's party is up 4 points to 19%.
A new opinion poll has shown Fianna Fáil has enjoyed its first rise in the polls since the last general election.
The Ireland Thinks voter survey for the Mail on Sunday shows Taoiseach Micheál Martin's party is up four points to 19 per cent.
The poll also shows massive support for President Michael D. Higgins' stance on attending next months religious ceremony in Armagh.
Adrian Kennedy reports:
"This latest poll show Sinn Fein still enjoys the lions share of public support, with 29% of the electorate backing them.
While Fianna Fail has increased it's support - Fine Gael has dropped slightly to 23%...but still the second largest party.
Elsewhere in the poll President Michael D. Higgins' decision not to attend an event to mark the partition of Ireland has been supported 81% of those polled.
His decision has been the subject of much political controversy this week, with former Taoiseach John Bruton saying he should attend.
Finally, with return to offices beginning this week...74% of people believe employers should have the right to ask workers if they're vaccinated.
This, despite the fact that official Government advice says they can't ask. "
Meanwhile almost three quarters of those surveyed in the poll said they believe employers should have the right to know if their workers have been vaccinated.
With employees beginning the return to offices from tomorrow, 74 percent seem uneasy at being ordered to work alongside an unvaccinated colleague.
However official Government advice is that employers are not entitled to ask an employees vaccine status, as getting the jab isn't mandatory in Ireland.

Jury At Jeffrey Donaldson Trial Sent Home For Weekend
Investigation Underway After Submachine Gun Fell From The Boot Of Garda Car
Withdrawal Of Solicitor Services For Criminal Legal Aid Cases Enters It's Fifth Day
Petrol and Diesel Prices Ease After US-Iran Peace Framework
42 South Africans Deported From Ireland
Investigations Continue After Woman Injured In Dublin
Convicted Paedophile Bill Kenneally Dies
Dáil Approves Proposal To Abolish Three-Day Abortion Waiting Period