Augustus Henry Eden Allhusen (20 August 1867 – 2 May 1925) was an English Conservative Party politician. He sat in the House of Commons from 1897 to 1906.
Allhusen was the son of Henry Christian Allhusen, son of Danish-born chemical magnate Christian Allhusen. Born in Gateshead, he was educated at Cheltenham College and at Trinity College, Cambridge (matriculated 1887, B.A. 1890).
He was commissioned in 1900 as a 2nd Lieutenant in the 1st Newcastle upon Tyne (Western division, Royal Garrison Artillery) Volunteers and later served as a lieutenant in the 2nd Royal Bucks Regiment of Yeomanry[1] and as a Justice of the Peace for Buckinghamshire.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.He did not contest Salisbury at the 1900 general election,[2] when he was elected as the MP for Hackney Central.He was defeated at the 1906 general election, and did not stand again.
He was appointed as a Deputy Lieutenant of Buckinghamshire in January 1897, and was High Sheriff of Buckinghamshire in 1913.
In 1897 he married Mary Dorothy Osma, daughter of Lieut.-Col. John Constantine Stanley and his wife Susan Elizabeth Mary Stewart-Mackenzie,[3] a hostess and politician better known under her later name as Mary Jeune, Baroness St Helier.