Pitt Clubs were private members clubs formed in Great Britain in the 18th and 19th century to memorialise William Pitt the Younger (1759–1806).
[1] The London Pitt Club was formed in 1793 by Nathaniel Atcheson with a view to counteract the radical ideas of the French Revolution.
Originally the club met on the birthdays of George III and his Queen Charlotte of Mecklenburg-Strelitz Following Pitt's resignation in 1801 they also celebrated Pitt's birthday on 28 May.
Following his death, the London club was relaunched in 1808.
[1] Other Pitt Clubs were formed in at least 45 towns.