Denzil Onslow may refer to: Denzil Onslow of Pyrford (–1721), British politician, Member of Parliament for several constituencies Denzil Onslow of Stoughton (–1765), British politician, Member of Parliament for Guildford Denzil Onslow (British Army officer) (1770–1838), general in the British Army and amateur cricketer Denzil Onslow Jr (1802–1879), English cricketer, and son of the above Denzil Onslow (Conservative politician) (1839–1908), British politician, Member of Parliament for Guildford