William Savile, 2nd Marquess of Halifax (1665 – 31 August 1700), was the son of George Savile, 1st Viscount Halifax and Dorothy Savile, Viscountess Halifax (née Spencer). He was educated in Geneva in 1677 and matriculated at Christ Church, Oxford, in 1681, but did not take a degree. He travelled on the continent in 1684–1687, returning on his brother's death. From that time, he was known as Lord Elland, from his father's subsidiary title of Baron Savile of Elland. He was elected Member of Parliament for Newark-on-Trent from 1689 to 1695. He was a Tory and voted in 1689 that the throne was not vacant. He had four daughters including: He died in 1700, at an early age from "an inward feavour". He died without male issue, so his peerages became extinct, but the baronetcy was inherited by a cousin.

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