John St Aubyn, 1st Baron St Levan

John St Aubyn, 1st Baron St Levan DL JP (23 October 1829 – 14 May 1908), known as Sir John St Aubyn, 2nd Baronet, from 1872 to 1887, was a British Liberal, and later Liberal Unionist, politician who sat in the House of Commons from 1858 until 1887 when he was raised to the peerage.

Colonel of the 3rd Bttn Duke of Cornwall's Light Infantry.

[4] St Aubyn was elected Member of Parliament for Cornwall West as a Liberal in 1858, a seat he held until 1885 when the constituency was replaced under the Redistribution of Seats Act 1885.

[6] He disagreed with William Ewart Gladstone over Irish Home Rule and sat as a Liberal Unionist from 1886 to 1887.

[6] He was succeeded in his titles by his eldest son John (23 September 1857 – 1940).