Liberty Hall (Irish: Halla na Saoirse), in Dublin, Ireland, is the headquarters of the Services, Industrial, Professional, and Technical Union (SIPTU).

Standing on Beresford Place and Eden Quay, near the Custom House, the original Liberty Hall was built as the Northumberland Hotel[4] before it became the headquarters of the Irish Citizen Army.

[5] Following the outbreak of the First World War a banner reading "We Serve Neither King nor Kaiser, But Ireland" was hung on its front wall, and ICA's newspaper, The Irish Worker, was printed inside.

In October 2006 it was announced that SIPTU (into which the Irish Transport and General Workers Union had merged in 1990) was seeking planning permission to demolish Liberty Hall and build a new headquarters on the same site.

[9] In February 2012 SIPTU was granted planning permission by Dublin City Council to demolish the present structure and build a 22-story replacement, with a height of about 100 meters.