Harry Pursey (24 August 1891 – 13 December 1980) was a British politician and naval officer, who began his career as a boy seaman and served as a Member of Parliament for twenty-five years.

During the First World War he served with the Dover Patrol and with the Grand Fleet; he took part in the Battle of Jutland aboard Revenge.

In 1917 he was promoted to the rank of gunner and saw service in the Aegean aboard Forward; that October, he was second-in-command of a landing party from the Forward which successfully evacuated a Royal Naval Air Service station on Lesbos Island, for which he was commissioned and received a mention in dispatches.

In 1954 his second wife was arrested in Montreal, for possessing counterfeit United States money, and acquitted after trial.

His obituary in The Times described him as "the first naval officer promoted from the lower deck" to enter Parliament.