Sir Henry St John-Mildmay, 3rd Baronet

Sir Henry Paulet St John-Mildmay, 3rd Baronet (30 September 1764 – 11 November 1808), of Dogmersfield Park, Hampshire, was an English politician.

He was a Member (MP) for Westbury 1796 - 1802, for Winchester 1802-1807 and for Hampshire 1807 - 11 November 1808