Kathleen O'Callaghan (née Murphy; 11 October 1885 – 16 March 1961) was an Irish Sinn Féin politician and academic.

[4] He was killed in front of her by the Auxiliary Division of the Royal Irish Constabulary at their home in 1921.

[6] She voted against the Anglo-Irish Treaty and sided with Éamon de Valera.

She was re-elected at the 1922 general election, this time as an Anti-Treaty Sinn Féin TD.

In accordance with Sinn Féin abstentionist policy of the time, she did not take her seat in the 3rd Dáil.