Katherine O’Connell (née Newman), a former Fine Gael politician who serves as a Teachta Dála (TD) for the Dublin Bay South constituency from 2016 to 2020, is born in Kilbeggan, County Westmeath, on January 3, 1980. During her time in the Dáil, O’Connell campaigns in favour of abortion rights as well as pushes for more funding for healthcare services in Ireland.

From 1999 to 2003, O’Connell studies to be a pharmacist at the University of Brighton, graduating with an M Pharm in the United Kingdom. She then works as a hospital pre-registrar in the Surrey and Sussex Healthcare NHS Trust, before returning to Ireland to practice as a locum-pharmacist. By 2006, she and her husband open up their first pharmacy in Sandyford, and later open up pharmacies in Rathgar, and Rathfarnham.

O’Connell is a member of Dublin City Council for the local electoral area of Rathgar–Rathmines from 2014 to 2016.

O’Connell is selected by Fine Gael for the 2016 Irish general election to “recapture” their seat in Dublin Bay South from Lucinda Creighton, who had left the party in 2013 over her objection to the party’s position on abortion and in 2015 founded Renua, an anti-abortion party. During the campaign, O’Connell called Creighton’s anti-abortion views “incredibly sanctimonious” and suggests that Creighton is an “out of touch career politician” whose views on abortion are borne out of a lack of connection with the real world. The Irish Independent refers to these comments as O’Connell “tearing strips off” of Creighton. In the election, O’Connell is elected, while Creighton loses her seat.

In her time in the Dáil, O’Connell campaigns in favour of abortion rights as well as pushing for more funding for healthcare services in Ireland.

In October 2016, O’Connell responds to comments by the Archbishop of Dublin Diarmuid Martin that TDs should remember their faith when legislating for abortion in Ireland by stating, “I don’t see why the archbishop’s views are in any way relevant. I don’t see why Archbishop Martin should be getting involved in women’s health issues. It is the same as asking my four-year-old. They [the Church] are entitled to their opinion, but I don’t put any weight in them. I don’t see what involvement the Catholic Church should have in women’s health issues”.

In November 2017, O’Connell confronts Barry Walsh, a member of Fine Gael’s executive council, with a dossier of tweets documenting that he repeatedly and frequently derogates women politicians, often calling them bitches, including fellow members of Fine Gael. After the leader of Fine Gael and Taoiseach Leo Varadkar comments that Walsh should resign, he does so.

O’Connell loses her seat at the 2020 Irish general election, placing 5th in the 4-seat constituency. In an August 2020 interview, she attributes her loss, in part, to being the running mate of the Minister for Housing, Eoghan Murphy, in an election fought over an ongoing housing crisis in Ireland.

On May 7, 2021, O’Connell declares she will not seek to be the Fine Gael candidate for the 2021 Dublin Bay South by-election. She suggests she will not be able to win a party selection again due to her relationship with the Fine Gael leadership souring in the meantime, partially because of her vocal support of Simon Coveney over Leo Varadkar in the 2017 Fine Gael leadership election. She also suggests many local Fine Gael branch members in Dublin South Bay regard her as an outsider and a “parachute candidate” due to the fact she is originally from County Westmeath, and have turned against her over this. The Phoenix offers the view that O’Connell would not be nominated because she has turned the Fine Gael leadership against her while lobbying for her sister, Mary Newman Julian, to be the party’s candidate in a 2018 Seanad by-election. In particular, a meeting between her and Simon Coveney in which her expectations are read as entitled is cited as hurting her relationships. Fine Gael’s candidate in the by-election is James Geoghegan, who had previously left the party to join Lucinda Creighton in Renua, but returns to Fine Gael after that party collapsed. He loses the by-election to Labour‘s Ivana Bacik, a senator for Dublin University and veteran pro-choice campaigner.

In October 2024, O’Connell leaves Fine Gael to contest the next general election in Dublin Bay South as an independent candidate. She fails to be elected or to achieve the one-quarter of the quota necessary to recoup her election expenses.

O’Connell states her family, the Newmans, have been “involved in Fine Gael since the 1960s,” starting when her maternal grandfather ran for Fine Gael as a councillor. Her father, Michael Newman, is also a Fine Gael councillor while Fine Gael minister Patrick Cooney is considered a family friend. O’Connell states that growing up, she and her family were greatly influenced by the progressive politics of Fine Gael leader Garret FitzGerald. Her sister, Mary Newman Julian, is also active in politics and contests elections for the Dáil in Tipperary and for Seanad Éireann, while another sister, Theresa Newman, works for a period as O’Connell’s political adviser in Leinster House. Her brother-in-law, Hugh O’Connell, is a prominent political journalist and editor who has worked for several Irish publications.

In 2018, during debates in the Dáil regarding abortion, O’Connell discloses personal details of a traumatic pregnancy she herself had experienced. During the pregnancy, she is told her child has only a 10% chance of survival. This prompts her to consider terminating the pregnancy. Ultimately, she decides to continue the pregnancy. The child is born with organs outside of the body but survives the birth. She cites the difficult decisions made during that pregnancy as having greatly informed her views on abortion.