George Peacock (1791–1858) was an English mathematician and Anglican cleric.
George Peacock may also refer to: George Peacock (captain) (1805–1883), English sea captain and shipowner George Peacock (manufacturer) (1824–1900), Australian businessman George Peacock (footballer) (1881–1943), Australian rules footballer George Peacock (luthier) (1942–2011), American luthier George Edwards Peacock, Australian colonial artist
See also Peacock (disambiguation) George Peacocke (1821–1879), British politician