Sir Herbert Samuel Leon, 1st Baronet (11 February 1850 – 23 July 1926)[1] was an English financier and Liberal Party politician, now best known as the main figure in the development of the Bletchley Park estate in Buckinghamshire.

[2] He was the second son of George Isaac Leon, a stockbroker, and Julia Ann Samuel.

He was elected as the Member of Parliament (MP) for Buckingham at an 1891 by-election,[3][4] after his predecessor Sir Edmund Verney had been expelled from the House of Commons.

[4] He stood for Parliament one more time, when he was unsuccessful at the 1906 general election in Handsworth division of Staffordshire.

He also donated other plots of land in the south of Bletchley for them to become public schools for the local children of the Lakes Estate.