Offseason
- November 14, 1983: Sil Campusano was signed by the Blue Jays as an amateur free agent.
- December 5, 1983: Kelly Gruber was drafted by the Blue Jays from the Cleveland Indians in the 1983 rule 5 draft.
- January 10, 1984: Dennis Lamp was signed as a free agent by the Blue Jays.
Read more about this topic: 1984 Toronto Blue Jays Season