Ponsonby (surname)
Ponsonby is a surname, and may refer to:
- Anne Ponsonby, British telegraphist
- Arthur Ponsonby, 1st Baron Ponsonby of Shulbrede, British politician, writer and social activist
- Arthur Ponsonby, 11th Earl of Bessborough, British peer
- Ashley Ponsonby, British politician
- Bernard Ponsonby, Scottish broadcast journalist
- Brabazon Ponsonby, 1st Earl of Bessborough, British politician and peer
- Lady Caroline Ponsonby, married name Lady Caroline Lamb, novelist and lover of Lord Byron
- Cecil Ponsonby, English cricketer
- Chambré Brabazon Ponsonby, Irish Member of Parliament
- Chambré Brabazon Ponsonby-Barker, Irish Member of Parliament
- Charles Ponsonby, 2nd Baron de Mauley of Canford, British peer and politician
- Sir Charles Ponsonby, 1st Baronet, British politician
- Dorothea Ponsonby, English writer
- Edward Ponsonby, 2nd Baron Sysonby, British peer and soldier
- Edward Ponsonby, 8th Earl of Bessborough, British peer
- Elizabeth Ponsonby, a Bright Young Thing in the 1920s, daughter of Arthur Ponsonby, 1st Baron Ponsonby of Shulbrede
- Emily Ponsonby, English novelist
- Frederick Ponsonby (British Army officer), British soldier
- Frederick Ponsonby, 1st Baron Sysonby, British soldier and courtier
- Frederick Ponsonby, 4th Baron Ponsonby of Shulbrede, British peer and politician
- Frederick Ponsonby, 3rd Earl of Bessborough, British peer
- Frederick Ponsonby, 6th Earl of Bessborough, British peer, founder of Surrey County Cricket Club and I Zingari
- Frederick Ponsonby, 10th Earl of Bessborough, British peer, diplomat and politician
- George Ponsonby, Lord Chancellor of Ireland
- George Ponsonby (Junior Lord of the Treasury), Irish politician
- Georgia Ponsonby, New Zealand rugby union footballer
- Henrietta Ponsonby, Countess of Bessborough, wife of Frederick Ponsonby, 3rd Earl of Bessborough, mother of Lady Caroline Lamb
- Henry Ponsonby, British soldier and courtier
- Henry Ponsonby (died 1681), English soldier and settler in County Kerry, brother of Colonel John Ponsonby
- Henry Ponsonby (died 1745), Irish soldier
- Jack Ponsonby, Irish footballer
- Jack Talbot-Ponsonby, British equestrian
- James Carrique Ponsonby, Irish Member of Parliament
- John Ponsonby (British Army officer), commanded 5th Division during World War I
- John Ponsonby (colonel), English officer in Oliver Cromwell's army during the Irish Confederate Wars
- John Ponsonby (politician), Speaker of the Irish House of Commons
- John Ponsonby (RAF officer), British Air Vice-Marshal
- John Ponsonby, 4th Earl of Bessborough, British politician and Lord Lieutenant of Ireland
- John Ponsonby, 5th Earl of Bessborough, British peer and politician
- John Ponsonby, 1st Viscount Ponsonby,, British diplomat, politician and peer
- John Ponsonby-Fane, English malacologist and cricketer
- Loelia Ponsonby, married name Loelia Lindsay, British peeress, needlewoman and magazine editor
- Madeleine Ponsonby, Countess of Bessborough, British art dealer
- Maria Ponsonby, Viscountess Duncannon, English noblewoman
- Matthew Ponsonby, 2nd Baron Ponsonby of Shulbrede, British peer
- Maurice Ponsonby, English Anglican cleric, Dean of Johannesburg
- Myles Ponsonby, British soldier, intelligence officer, diplomat and politician
- Richard Ponsonby (bishop), Church of Ireland bishop
- Richard Ponsonby (politician), Irish Member of Parliament
- Richard Ponsonby-Fane, British Japanologist
- Robert Ponsonby, English arts administrator
- Roberte Ponsonby, Countess of Bessborough, daughter of Baron Jean de Neuflize
- Rupert Ponsonby, 7th Baron de Mauley, British peer and politician
- Spencer Ponsonby-Fane, English diplomat, civil servant, courtier and cricketer
- Thomas Ponsonby (captain), Irish army officer and landowner
- Thomas Ponsonby, 3rd Baron Ponsonby of Shulbrede, British politician
- Vere Ponsonby, 9th Earl of Bessborough, Anglo-Irish politician, Governor General of Canada
- Victoria Ponsonby, Baroness Sysonby, British cookbook author
- Walter Ponsonby, 7th Earl of Bessborough, British peer and Anglican priest
- William Ponsonby (British Army officer), Irish politician and soldier
- William Ponsonby (publisher), London publisher of the Elizabethan era
- William Ponsonby, 1st Baron Ponsonby, Irish politician
- William Ponsonby, 1st Baron de Mauley, British peer and politician
- William Ponsonby, 2nd Earl of Bessborough, Anglo-Irish politician and public servant
- William Ponsonby, 1st Viscount Duncannon, Anglo-Irish peer