Blue Jays Roster & Staff
Transactions
| Date | Transaction |
| 06/30/18 | Toronto Blue Jays recalled Jake Petricka from Buffalo Bisons. |
| 06/30/18 | Toronto Blue Jays signed RHP Andy McGuire. |
| 06/30/18 | Toronto Blue Jays placed RHP Ryan Tepera on the 10-day disabled list retroactive to June 28, 2018. Right elbow inflammation |
| 06/29/18 | Toronto Blue Jays selected the contract of Darnell Sweeney from Buffalo Bisons. |
| 06/28/18 | Toronto Blue Jays traded LF Steve Pearce and cash to Boston Red Sox for SS Santiago Espinal. |
| 06/28/18 | Toronto Blue Jays traded LF Steve Pearce and cash to Boston Red Sox for SS Santiago Espinal. |
| 06/26/18 | Toronto Blue Jays recalled Ryan Borucki from Buffalo Bisons. |
| 06/26/18 | Toronto Blue Jays designated Gio Urshela for assignment. |
| 06/23/18 | Toronto Blue Jays recalled Tim Mayza from Buffalo Bisons. |
| 06/23/18 | Toronto Blue Jays placed RHP Aaron Sanchez on the 10-day disabled list. Right index finger contustion. |
| 06/23/18 | Toronto Blue Jays activated RHP Marcus Stroman from the 10-day disabled list. |
| 06/23/18 | Toronto Blue Jays placed LHP Jaime Garcia on the 10-day disabled list. Left shoulder inflammation. |
| 06/22/18 | Toronto Blue Jays optioned 2B Lourdes Gurriel Jr. to Buffalo Bisons. |
| 06/22/18 | Sam Gaviglio roster status changed by Toronto Blue Jays. |
| 06/22/18 | Toronto Blue Jays activated LF Steve Pearce. |
| 06/22/18 | Toronto Blue Jays placed RHP Danny Barnes on the 10-day disabled list. Left knee tendinitis |
| 06/20/18 | Toronto Blue Jays signed OF Griffin Conine. |
| 06/19/18 | Toronto Blue Jays placed RHP Sam Gaviglio on the paternity list. |
| 06/19/18 | Toronto Blue Jays recalled Lourdes Gurriel Jr. from Buffalo Bisons. |
| 06/18/18 | Toronto Blue Jays signed RHP Grant Townsend. |
| 06/18/18 | Toronto Blue Jays signed RHP Matt Harris. |
| 06/18/18 | Toronto Blue Jays signed RHP Fitz Stadler. |
| 06/18/18 | Toronto Blue Jays sent RHP Marcus Stroman on a rehab assignment to New Hampshire Fisher Cats. |
| 06/18/18 | Toronto Blue Jays signed RHP Austin Havekost. |
| 06/16/18 | Toronto Blue Jays sent LF Steve Pearce on a rehab assignment to Buffalo Bisons. |
| 06/15/18 | Texas Rangers claimed RHP Deck McGuire off waivers from Toronto Blue Jays. |
| 06/13/18 | Toronto Blue Jays sent RHP Marcus Stroman on a rehab assignment to Dunedin Blue Jays. |
| 06/13/18 | Toronto Blue Jays signed free agent RHP Jackson Rees to a minor league contract. |
| 06/12/18 | Toronto Blue Jays signed SS Addison Barger. |
| 06/12/18 | Toronto Blue Jays signed RHP Sean Wymer. |
| 06/12/18 | Toronto Blue Jays signed C Christopher Bec. |
| 06/12/18 | Toronto Blue Jays signed 2B Nick Podkul. |
| 06/12/18 | Toronto Blue Jays signed RHP Brad Wilson. |
| 06/12/18 | Toronto Blue Jays signed SS Vinny Capra. |
| 06/12/18 | Toronto Blue Jays signed RHP Joey Pulido. |
| 06/12/18 | Toronto Blue Jays signed C Francisco Ruiz. |
| 06/12/18 | Toronto Blue Jays signed RHP Joey Murray. |
| 06/12/18 | Toronto Blue Jays signed 1B Jake Brodt. |
| 06/12/18 | Toronto Blue Jays signed CF Cal Stevenson. |
| 06/12/18 | Toronto Blue Jays signed CF Hunter Steinmetz. |
| 06/12/18 | Toronto Blue Jays signed LHP NIck Allgeyer. |
| 06/12/18 | Toronto Blue Jays signed 3B John Aiello. |
| 06/12/18 | Toronto Blue Jays signed C Troy Squires. |
| 06/12/18 | Toronto Blue Jays signed RHP Gage Burland. |
| 06/12/18 | Toronto Blue Jays signed RHP Mike Pascoe. |
| 06/12/18 | Toronto Blue Jays signed RHP Will McAffer. |
| 06/12/18 | Toronto Blue Jays signed RHP Cre Finfrock. |
| 06/12/18 | Toronto Blue Jays signed RHP Cobi Johnson. |
| 06/12/18 | Toronto Blue Jays signed SS Jordan Groshans. |
| 06/12/18 | Toronto Blue Jays signed RHP Adam Kloffenstein. |
| 06/12/18 | Toronto Blue Jays signed RHP Troy Watson. |
| 06/12/18 | Toronto Blue Jays signed CF Adrian Ramos. |
| 06/11/18 | Toronto Blue Jays optioned LHP Tim Mayza to Buffalo Bisons. |
| 06/11/18 | Toronto Blue Jays activated RHP Preston Guilmet. |
| 06/09/18 | Toronto Blue Jays designated RHP Deck McGuire for assignment. |
| 06/09/18 | Toronto Blue Jays claimed RHP Preston Guilmet off waivers from St. Louis Cardinals. |
| 06/08/18 | Cleveland Indians traded 2B Jon Berti to Toronto Blue Jays. |
| 06/07/18 | Toronto Blue Jays signed free agent LHP Patrick Thurston to a minor league contract. |
| 06/01/18 | Toronto Blue Jays optioned LF Dwight Smith Jr. to Buffalo Bisons. |
| 06/01/18 | Toronto Blue Jays optioned RHP Jake Petricka to Buffalo Bisons. |
| 06/01/18 | Toronto Blue Jays recalled Tim Mayza from Buffalo Bisons. |
| 06/01/18 | Toronto Blue Jays activated CF Randal Grichuk from the 10-day injured list. |
| 06/01/18 | Toronto Blue Jays activated RF Randal Grichuk. |
| 06/01/18 | Toronto Blue Jays placed 3B Josh Donaldson on the 10-day disabled list retroactive to May 29, 2018. Left calf tightness. |
| 06/01/18 | Toronto Blue Jays activated SS Aledmys Diaz from the 10-day disabled list. |
| 06/01/18 | Toronto Blue Jays activated RF Randal Grichuk. |