Thomas Brooke, 2nd Viscount Alanbrooke

The Rt. Hon. Thomas Brooke, 2nd Viscount Alanbrooke (9 January 1920 – 19 December 1972), was a British peer. He was the son of Field Marshal The 1st Viscount Alanbrooke.

From an Ulster Anglo-Irish aristocratic family, he received his education at Wellington College in Berkshire and fought in the Second World War in the Royal Artillery. He was a writer and a water colour artist. He was unmarried and the viscountcy passed to his half-brother, Victor. Upon the death of the 3rd Viscount, the viscountcy is expected to become extinct, as the 3rd Viscount has no issue.