Sir Arthur Sackville Trevor Griffith-Boscawen (1865-1946) was a British Conservative politician whose career was cut short by repeatedly losing a string of Parliamentary elections.

In 1921 he was appointed to the Lloyd George Coalition Government as Minister of Agriculture but under the law at the time he was required to automatically stand for re-election to the House of Commons. Griffith-Boscawen lost the ensuring by-election but another seat was found for him and he continued his career in government. Five years later the law on ministerial appointments would be amended to end the requirement for such by-elections.

When Lloyd George's government fell in October 1922, Griffith-Boscawen was one of only a few members of the outgoing Cabinet who agree to serve under the new Prime Minister, Andrew Bonar Law, who promoted him to Minister of Health. The following month a general election was held and Griffith-Boscawen once more lost his seat. He remained in government and set about producing a bill on local government rating which provoked fierce controversy in the country at large. In March 1923 he sought to re-enter the House of Commons in a by-election at Mitcham, but was defeated by the future Labour Cabinet Minister, James Chuter Ede. Griffith-Boscawen was forced to retire from politics as a result. The resulting vacancy in the Cabinet was filled by Neville Chamberlain.