Brian Harrison may refer to:
Brian Harrison (Conservative politician) (1921–2011), Australian-born British Conservative politician Brian Harrison (historian) (born 1937), editor of Oxford Dictionary of National Biography and professor Brian Harrison (Labour politician), councillor in Old Moat, Manchester, England Brian Harrison (Texas politician) (born c. 1983), political appointee in G. W. Bush and Trump administrations Brian Harrison (theologian) (born 1945), Australian-born Roman Catholic priest and theologian