Offseason
- December 8, 1980: 1980 rule 5 draft
- George Bell was drafted by the Blue Jays from the Philadelphia Phillies.
- Dan Whitmer was drafted by the Blue Jays from the California Angels.
- January 15, 1981: Ken Macha was purchased by the Blue Jays from the Montreal Expos.
Read more about this topic: 1981 Toronto Blue Jays Season