	Harvey R. Blau (November 14, 1935 – January 19, 2018) was an American attorney and business executive. He was the Chairman of the Board and former CEO of Griffon Corporation (formerly Instrument Systems Corporation). He became a practicing attorney in New York in 1961, and in 1966 was the founding partner of the law firm Blau Kramer Wactlar & Lieberman PC in Jericho, New York.