Orsamus Hylas Irish (1830–1883) was an official in the United States Department of the Treasury who served as Chief of the Bureau of Engraving and Printing from 1878 to 1883.

[1] In 1855 Irish was listed as a director and secretary of the North Western Insurance Company located at 76 Walnut Street, Philadelphia.

[4] Also in 1861 (October 9) he was appointed U.S. Postmaster in Black Bird County, Nebraska Territory.

[1] On June 8, 1865, Irish executed, on behalf of the U.S. Government as Superintendent of Indian Affairs for the Utah Territory, an agreement(called the Spanish Fork Treaty) with the Timpanogos (Tim-p-nogs) Nation Uintah Valley Reservation.

Olivet Commandery No.2 of the Masonic Orders of the Red Cross Knights Templar and Knights of Malta[9] Also in 1868, he served as a director and Vice President of the St Lous & Nebraska Trunk Railroad.

[10] In 1869, Irish was appointed U.S. Consul in Dresden, Kingdom of Saxony before the unification of Germany.

[16] As chairman of a fund raising sub-committee (Departments of Treasury and Justice), Irish also participated in the planning activities for ceremonies surrounding the inauguration of James A. Garfield, 20th President of the United States.

[1] During his tenure as Chief, a new building was authorized and constructed on the southwest corner of 14th and B (Independence Avenue today) streets.