Henry Irwin CIE (24 January 1841 – 5 August 1922) was an architect of British India. He is mainly known for his works in Indo-Saracenic style of architecture. He was a member of the Institution of Engineers. He was awarded a CIE in the 1888 Birthday Honours. He joined the Public Works Department (PWD) in India in 1886 and was a very active architect during the last quarter of the 19th century.