Joseph Robert Fisher (1855 – 26 October 1939) was a barrister, a newspaper editor, and an author from Ulster. Fisher alternated his career between working as a journalist at London daily newspapers, legal practice at the English Bar, editing Belfast's liberal unionist daily newspaper, and authoring books on subjects such as Irish and European politics and press law. Fisher's most prominent role was his appointment as the Unionist commissioner on the Irish Boundary Commission, the body established under the 1921 Anglo-Irish Treaty to decide on the delineation of the border between the Irish Free State and Northern Ireland.