Patrick Thomas Cormack, Baron Cormack, DL, FSA, FRHistS (18 May 1939 – 25 February 2024) was a British politician, historian, journalist and author. He served as a member of Parliament (MP) for 40 years, from 1970 to 2010. Cormack was a member of the Conservative Party and was seen as a one-nation conservative.

Before entering Parliament, Cormack was a teacher. He was elected for Cannock at the 1970 general election. Following boundary changes he was elected for South West Staffordshire in 1974, renamed South Staffordshire in 1983. He was elected chair of the Northern Ireland Affairs Select Committee in 2005. He was also twice a candidate for the speakership of the House of Commons. After standing down from the House of Commons in 2010, he served as an active life peer in the House of Lords.

Cormack was born to Thomas Charles Cormack, a local government officer and master mariner, and his wife Kathleen Mary Cormack in Grimsby just before the outbreak of the Second World War. He was educated locally at the St James's Choir School and the Havelock School, before attending the University of Hull, where he received a Bachelor of Arts degree in 1961.

Cormack was a teacher at his former school, St James's Choir School, in 1961. Cormack contested the safe Labour parliamentary seat of Bolsover at the 1964 general election, where he lost to the sitting MP Harold Neal, who won with a majority of 23,103 votes. At the 1966 general election, Cormack contested his hometown seat of Grimsby, but again was defeated, this time by the Secretary of State for Education and Science, Anthony Crosland, who had a majority of 8,126. Cormack became a training and education officer with Ross Ltd in 1966. In 1967, he was appointed an assistant house master at the Wrekin College in Wellington, Shropshire, for two years, after which he became the head of history at Brewood Grammar School in 1969.

Prior to 1970, Cormack was a member of the Bow Group and the Conservative Monday Club, resigning from both at the end of 1971.

At the 1970 general election, Cormack stood for the seat of Cannock, and this time was elected, narrowly defeating the incumbent Labour MP Jennie Lee. Cormack won with a majority of 1,529.

From 1970 to 1973, Cormack served as a Parliamentary Private Secretary at the Department of Health and Social Security. He moved constituencies at the February 1974 general election, leaving the marginal seat of Cannock and instead contesting the adjacent newly drawn seat of South West Staffordshire, which he won comfortably with a majority of 9,758.

Cormack became chairman of the editorial board of The House magazine in 1976, and editor of the magazine in 1979.