Fine Gael's approval rating has risen eight points to 29%, according to the latest opinion poll.
The Behaviour and Attitudes survey carried out on behalf of the Sunday Times found that, after suffering its second-worst election result since 1948, party leader Leo Varadkar's approval has jumped 28 points to 63%.
Sinn Féin's approval now stands at 30%, five points higher than its general election result, while Mary Lou McDonald's satisfaction level is up 17 points to 57%.
The poll is a disappointing one for Fianna Fáil, who have dropped two points down to 20% approval, while the satisfaction rating for Taoiseach Micheál Martin is also down two points to 44%.
The Greens and Labour are both down one point to 6% and 3% approval respectively, while the Social Democrats, Solidarity PBP and Renua are all on 1%.