Denzil Onslow

• Denzil Onslow (cricketer)
• Denzil Onslow of Pyrford, British politician, Member of Parliament for several constituencies
• Denzil Onslow of Stoughton, British politician, Member of Parliament for Guildford
• Denzil Onslow (British [Army officer)], general in the British Army and amateur cricketer
• Denzil Onslow (Conservative politician), British politician, Member of Parliament for Guildford