Events from the year 1770 in Great Britain.
- 4 January – Edward Banks, building contractor (died 1835)
- 25 January – Francis Burdett, politician (died 1844)
- 2 February – George Gordon, 5th Duke of Gordon, nobleman, soldier and politician (died 1836)
- 11 March – William Huskisson, Member of Parliament (died 1830)
- 29 March – Elizabeth Conyngham, Marchioness Conyngham, mistress of George IV (died 1861)
- 7 April – William Wordsworth, poet (died 1850)
- 11 April – George Canning, Prime Minister of the United Kingdom (died 1827)
- 30 April – David Thompson, British–Canadian explorer (died 1857)
- 7 June – Robert Jenkinson, 2nd Earl of Liverpool, Prime Minister of the United Kingdom (died 1828)
- 18 October – Thomas Phillips, painter (died 1845)
- 5 November – Sarah Guppy, inventor (died 1852)
- 9 December (bapt.) – James Hogg, Scottish poet and novelist (died 1835)
- 13 December – John Clarke Whitfield, organist and composer (died 1836)
- c. January – William Falconer, Scottish poet and marine dictionary compiler (lost at sea) (born 1732)
- 20 January – Charles Yorke, Lord Chancellor of Great Britain (born 1722)
- 23 June – Mark Akenside, poet and physician (born 1721)
- 27 July – Robert Dinwiddie, British colonial Governor of Virginia (born 1693)
- 24 August – Thomas Chatterton, poet (suicide) (born 1752)
- 30 September – Thomas Robinson, 1st Baron Grantham, politician and diplomat (born c. 1695)
- 30 September – George Whitefield, Methodist leader (born 1714)
- 18 October – John Manners, Marquess of Granby, soldier (born 1721)
- 1 November – Alexander Cruden, Biblical scholar (born 1699 in Scotland)
- 9 November – John Campbell, 4th Duke of Argyll, politician (born c. 1693)
- 13 November – George Grenville, Prime Minister of Great Britain (born 1712)[11]
Hibbert, Christopher (1988). "Radcliffe Infirmary". The Encyclopædia of Oxford. London: Macmillan. pp. 352–3. ISBN 0-333-39917-X.