Mike Weir (disambiguation)

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