Cubs Roster & Staff
Transactions
| Date | Transaction |
| 06/30/20 | Chicago Cubs signed free agent RHP Bailey Reid to a minor league contract. |
| 06/30/20 | Chicago Cubs signed free agent RHP Graham Lawson to a minor league contract. |
| 06/28/20 | CF Brennen Davis roster status changed by Chicago Cubs. |
| 06/28/20 | RF Mark Zagunis roster status changed by Chicago Cubs. |
| 06/28/20 | Chicago Cubs invited non-roster RHP Juan Gamez to spring training. |
| 06/28/20 | Chicago Cubs invited non-roster LHP Brailyn Marquez to spring training. |
| 06/28/20 | 3B Christopher Morel roster status changed by Chicago Cubs. |
| 06/26/20 | Chicago Cubs signed free agent OF Bradlee Beesley to a minor league contract. |
| 06/26/20 | Chicago Cubs signed free agent OF Jacob Wetzel to a minor league contract. |
| 06/26/20 | Chicago Cubs signed free agent 2B Scott McKeon to a minor league contract. |
| 06/26/20 | Chicago Cubs signed free agent 1B Matt Mervis to a minor league contract. |
| 06/25/20 | Chicago Cubs signed LHP Luke Little. |
| 06/25/20 | Chicago Cubs signed RHP Koen Moreno. |
| 06/25/20 | Chicago Cubs signed LHP Burl Carraway. |
| 06/22/20 | Chicago Cubs signed SS Ed Howard. |