Augustus Henry Eden Allhusen DL (20 August 1867 – 2 May 1925)[1][2] was an English Conservative Party[3] politician.

[4] He was commissioned in 1900 as a 2nd Lieutenant in the 1st Newcastle upon Tyne (Western division, Royal Garrison Artillery) Volunteers[5] and later served as a lieutenant in the 2nd Royal Bucks Regiment of Yeomanry[6] and as a Justice of the Peace for Buckinghamshire.

[6] He was elected at a by-election in January 1897 as the Member of Parliament (MP) for Salisbury, following the resignation of the Conservative MP Edward Hulse.

[8] He was defeated at the 1906 general election,[9] and did not stand again.

[11] In 1897 he married Mary Dorothy Osma, daughter of Lieut.-Col. John Constantine Stanley[6] and his wife Susan Elizabeth Mary Stewart-Mackenzie,[12] a hostess and politician better known under her later name as Mary Jeune, Baroness St Helier.