The Rt Hon Michael Howard QC MP, (born 7 July 1941) is a British politician, former Leader of the Opposition and Leader of the Conservative Party from November 2003 to December 2005. Since his election as an MP at the 1983 General Election, Howard also held a number of positions in successive Conservative governments until their electoral defeat in 1997, most notably Home Secretary under John Major.

Sir Michael Eliot Howard, OM, CH, CBE, MC (born 29 November 1922) is a retired British military historian, formerly Chichele Professor of the History of War and Regius Professor of Modern History at Oxford University. A former British Army officer, Howard fought in the Italian Campaign during the Second World War with the Coldstream Guards. He was twice wounded and won a Military Cross at Salerno.

Michael Howard is a software security expert from Microsoft. He is author of several computer security books, most famous Writing Secure Code. Michael Howard is frequent speaker at security related conferences, and he frequently publishes articles on this subject.