John Yarde-Buller, 1st Baron Churston (12 April 1799 – 4 September 1871) was a British Conservative politician.
Born John Buller-Yarde-Buller, he was the eldest son of Sir Francis Buller-Yarde-Buller, 2nd Baronet (1767–1833) by his wife Elizabeth Holliday, only daughter and sole heiress of John Holliday of Dilhorne Hall in the parish of Dilhorne, Staffordshire.
He served as Lieutenant-Colonel of the South Devon Militia and became its commanding officer in 1852 when the post of Colonel of the Regiment was abolished.
His son the Hon John Buller Yarde-Buller also served in the regiment and succeeded him in command.
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