William Nichol may refer to:
William Nichol (cricketer) (1912–1973), Scottish cricketer William E. Nichol (1918–2006), American politician in Nebraska William Nichol (mayor) (1800–1878), American banker and mayor of Nashville, Tennessee
See also Wilfred Nichol (1901–1955), British athlete sometimes referred to mistakenly as William Nichol William Nicholl (1868–1922), rugby union footballer of the 1890s William Nicoll (disambiguation)