Since 10 February 2018, the office has been held by Mary Lou McDonald, following the decision of Gerry Adams to stand down as leader of the party and not seek re-election again.
If the president is not a member of Dáil Éireann, then a TD is appointed in their place to act as the leader of the parliamentary party.
Edward Martyn, a cultural activist and playwright, was elected president at the party's first annual convention on 28 November 1905.
[3] De Valera's successor John J. O'Kelly was one of four leaders who served for brief periods of time as Sinn Féin's party membership declined in favour of Fianna Fáil and Fine Gael.
She was succeeded by Paddy McLogan and Tomás Ó Dubhghaill who both helped rebuild party support in the aftermath of World War II.
Ó Brádaigh's presidency was shaped by relentless violence between republican and loyalist paramilitaries and the British security forces.
Unlike other political party leaders, the president of Sinn Féin does not have the power to appoint or dismiss their deputy.