There has been an increase in support for Sinn Féin and Fianna Fáil, a Business Post/Red C opinion poll has suggested.
The survey of voters also indicates a drop in support for Fine Gael.
The poll of 1,000 voters taken over seven days up to last Thursday indicates that Fianna Fáil is on 26% support, which is an increase of two points on the last comparable poll in November.
Fine Gael drops seven points with party's support now gauged at 23%.
It is the first time since April 2017 that Fianna Fáil has polled ahead of Fine Gael in this series of polls.
The biggest shift in support is for Sinn Féin, which is up eight points to 19%.
The Green Party is up one to 8% while Labour is down two to 4%.
Independents are also down two on 14%.
There is a one point rise for the Social Democrats on 3% with Solidarity-PBP unchanged on 2%.
Aontú is on 1% support according to this poll, which has a margin of error of plus or minus 3%.
This poll suggests that 8% are still undecided about how they will vote on 8 February.