Margaret Buckley (née Goulding; Irish: Maighréad Uí Bhuachalla (née Ní Ghabhláin); July 1879 – 24 July 1962) was an Irish republican and president of Sinn Féin from 1937 to 1950. She was the first female leader of Sinn Féin and was the first Irishwoman to lead a political party.