Frederick Ponsonby, Viscount Duncannon

Frederick Arthur William Ponsonby, Viscount Duncannon (born on 9 August 1974), is a British courtesy viscount. He is the son of Myles Ponsonby, 12th Earl of Bessborough, and his wife Alison née Storey. He is the heir apparent to the Earldom of Bessborough.

He was educated at Harrow School and at the University of East Anglia where he graduated with a degree in American and English History in 1997. He is married to Emily Mott.