William McLaren may refer to:
Sports Bill McLaren (1923–2010), Scottish rugby union player and commentator Billy McLaren (born 1948), Scottish football player and manager William McLaren (footballer) (1887–?), Scottish footballer (Cowdenbeath, Huddersfield Town) William McLaren (sport shooter) (1881–1962), Canadian Olympic sports shooter Willie McLaren (born 1984), Scottish footballer Willie McLaren (1930s footballer), Scottish footballer
Others William McLaren (illustrator) (1923–1987), Scottish illustrator William Edward McLaren (1831–1905), Bishop of Chicago, Illinois Bill McLaren (public servant) (1898–1973), Australian public servant in the Department of the Interior
See also William McLaren Bristol (1860–1935), co-founder of Bristol-Myers Squibb