Siobhán Fenton is a writer and journalist.

Her commentary on Irish politics has been published by the Irish Independent, the Irish Times and RTÉ. She writes about Irish political strategy, with a particular focus on left-wing parties’ strategies, on Substack.

Her memoir ‘Ourselves Alone- Sinn Féin Behind Closed Doors’ was published by Penguin in September 2026 and shares her experiences of working as a senior press adviser for Sinn Féin in the Oireachtas from 2020-2024 while the party was on the cusp of entering power in Dublin for the first time, before the political strategy ultimately unravelled amid the emergence of the far-right as the election inched closer.

Her first book The Good Friday Agreement was published in 2018 and she has delivered lectures and seminars about the Good Friday Agreement and Northern Irish politics at universities including the University of Cambridge, Queen’s University Belfast, Cardiff University and the University of Tübingen in Germany. She was a contributing writer to the Repeal The 8th Anthology, writing about abortion legislation in the north of Ireland.

She holds a BA in English Literature from the University of Oxford, MA in Journalism from City University London and MPhil in Gender Studies from the University of Cambridge.