Mike Weir (born 1970) is a Canadian golfer.
Mike or Michael Weir may also refer to:
Mike Weir (politician) (born 1957), Scottish politician Mike Weir (American football official), American football official Michael Weir (murderer), first man in Britain to have been convicted of the same crime twice Michael Weir (footballer) (born 1991), footballer from Jersey Michael Scott Weir (1925–2006), British diplomat Michael H. Weir Jr. (born 1948), American politician from Maryland See also Mickey Weir (born 1966), Scottish footballer