Denzil Onslow may refer to:
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Denzil Onslow (cricketer) (1802-1879)
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Denzil Onslow of Pyrford
Denzil Onslow of Pyrford (27June 1721) was a British Whig politician who sat in the English and British House of Commons between 1679 and 1721. Through advantageous marriages, he obtained a country estate and became prominent in Surrey politic ...
( – 1721), British politician, Member of Parliament for several constituencies
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Denzil Onslow of Stoughton ( – 1765), British politician, Member of Parliament for Guildford
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Denzil Onslow (British Army officer) (1770–1838), general in the British Army and amateur cricketer
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Denzil Onslow (Conservative politician) (1839–1908), British politician, Member of Parliament for Guildford
{{hndis, Onslow, Denzil