Sinéad Gibney (born 1976/1977) is an Irish Social Democrats politician who has been a Teachta Dála (TD) for the Dublin Rathdown constituency since the 2024 general election.

[10] Following the European elections, Gibney publicly discussed the financial cost of campaigning on such a large scale, revealing a personal loss of €20,000 after falling just 440 votes short of the 18,836 required to reclaim her €1,800 deposit.

Running in the Dublin constituency, Gibney sold her car to help fund her campaign, raised €15,000 through crowdfunding, and received €25,000 from the Social Democrats, with total expenses amounting to €60,000.

She denied her departure was tied to pay discussions and highlighted personal financial sacrifices for her campaign, amid earlier informal talks with the Social Democrats.

[8] Gibney has stated she supports addressing the challenges and opportunities of artificial intelligence with a focus on its potential to create a more balanced working life and increase leisure time.