Mike Weir (disambiguation)
Mike Weir is a Canadian golfer.
Mike or Michael Weir may also refer to:
- Mike Weir (politician), 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), footballer from Jersey
- Michael Scott Weir, British diplomat
- Michael H. Weir Jr., American politician from Maryland