William or Billy Agnew may refer to:
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Sir William Agnew, 1st Baronet
Sir William Agnew, 1st Baronet (20 October 1825 – 31 October 1910) was an English politician and art dealer. Thomas Agnew & Sons, his London art business in Mayfair flourished as one of the leading art dealerships in London from 1860, until ...
(1825–1910), English politician
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William Agnew (footballer) (1880–1936), Scottish footballer (national team)
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Billy Agnew (1898–?), Scottish footballer (Port Vale, Luton Town)
*Sir
William Agnew (Royal Navy officer) (1898–1960), British admiral
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