William Fernie may refer to:

• Willie Fernie (golfer) (1855–1924), Scottish golfer
• Willie Fernie (footballer) (1928–2011), Scottish footballer
• William Fernie, nineteenth-century prospector and namesake of Fernie, British Columbia
• William N Fernie, 2003-2007 councillor of Wick West, Highland, Scotland

See also

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• Bill Ferny, fictional pony, belonged to Frodo Baggins and his companions in The Lord of the Rings