Sidney Parker may refer to:
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Sid Parker (born 1930), Canadian politician
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Sidney Parker (anarchist)
Egoist anarchism or anarcho-egoism, often shortened as simply egoism, is a school of anarchist thought that originated in the philosophy of Max Stirner, a 19th-century philosopher whose "name appears with familiar regularity in historically ori ...
(born 1929), British anarchist
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Sidney Parker (rugby union) (1852–1897), English rugby international
{{Hndis, Parker, Sidney