Sir John Osborn, 5th Baronet

Sir John Osborn, 5th Baronet (3 December 1772 – 28 August 1848), of Chicksands Priory in Bedfordshire, was an English politician.

He was the only son of Sir George Osborn, 4th Baronet who he succeeded in 1818. He was educated at Westminster School and Christ Church, Oxford.

Osborn was Member of Parliament for Bedfordshire, 1794–1807; for Cockermouth, 1807–1808; for Queenborough, 1812–1818; again for Bedfordshire, 1818–1820 and for the Wigtown Burghs 1821–1824. He served as a Lord of the Admiralty from 1812 to 1824 and as one of the Commissioners of Audit from 1824 until his death.

In 1797 he served as a Captain in the Bedfordshire Yeomanry and in 1803–05 in the Bedford Volunteers. On 12 January 1805 the Earl of Upper Ossory as Lord Lieutenant of Bedfordshire appointed him as Colonel of the Bedfordshire Militia after his predecessor was removed following a court of enquiry. As a young man Osborn's father had been an officer in the regiment when it was reformed in 1759, before joining the regular army and rising to the rank of General. In March 1805 Col Osborn joined the regiment and marched it to barracks at Berry Head near Brixham for its summer training, but thereafter direct command was usually exercised by the lieutenant-colonel. Osborn retained the command of the regiment until his death.

He died in 1848. He had married Frederica Louisa, the illegitimate daughter of Sir Charles Davers, 6th Baronet, with whom he had 5 sons and 3 daughters. He was succeeded in the baronetcy and family estates by his eldest son George Robert, the 6th baronet.