John Sisk

This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "John Sisk" – news · newspapers · books · scholar · JSTOR (September 2015) (Learn how and when to remove this message)

John Sisk (20 September 1837 – 21 October 1921) was an Irish builder who founded the construction company of John Sisk & Son, eventually one of the largest construction enterprises in Ireland.