Cubs Roster & Staff
Transactions
| Date | Transaction |
| 11/20/20 | Chicago Cubs selected the contract of RHP Cory Abbott. |
| 11/20/20 | Chicago Cubs selected the contract of RHP Keegan Thompson. |
| 11/20/20 | Chicago Cubs selected the contract of 3B Christopher Morel. |
| 11/20/20 | Chicago Cubs selected the contract of RHP Keegan Thompson from Myrtle Beach Pelicans. |
| 11/20/20 | Chicago Cubs selected the contract of 3B Christopher Morel from South Bend Cubs. |
| 11/20/20 | Chicago Cubs selected the contract of RHP Cory Abbott from Myrtle Beach Pelicans. |
| 11/17/20 | Chicago Cubs signed free agent OF Ian Miller to a minor league contract and invited him to spring training. |
| 11/17/20 | Chicago Cubs signed free agent OF Ian Miller to a minor league contract and invited him to spring training. |
| 11/16/20 | Chicago Cubs signed free agent LHP D.J. Snelten to a minor league contract and invited him to spring training. |
| 11/16/20 | Chicago Cubs signed free agent LF Rafael Ortega. |
| 11/16/20 | Chicago Cubs signed free agent RHP Jake Jewell to a minor league contract and invited him to spring training. |
| 11/16/20 | Chicago Cubs signed free agent P Jake Jewell. |
| 11/16/20 | Chicago Cubs signed free agent C Taylor Gushue. |
| 11/16/20 | Chicago Cubs signed free agent P D.J. Snelten. |
| 11/16/20 | Chicago Cubs signed free agent OF Rafael Ortega to a minor league contract and invited him to spring training. |
| 11/16/20 | Chicago Cubs signed free agent LHP D.J. Snelten to a minor league contract and invited him to spring training. |
| 11/16/20 | Chicago Cubs signed free agent C Taylor Gushue to a minor league contract and invited him to spring training. |
| 11/16/20 | Chicago Cubs signed free agent LHP Jerry Vasto to a minor league contract and invited him to spring training. |
| 11/16/20 | Chicago Cubs signed free agent C Taylor Gushue to a minor league contract and invited him to spring training. |
| 11/16/20 | Chicago Cubs signed free agent OF Rafael Ortega to a minor league contract and invited him to spring training. |
| 11/16/20 | Chicago Cubs signed free agent LHP Jerry Vasto to a minor league contract and invited him to spring training. |
| 11/16/20 | Chicago Cubs signed free agent RHP Jake Jewell to a minor league contract and invited him to spring training. |
| 11/12/20 | Chicago Cubs signed free agent CF Michael Hermosillo to a minor league contract and invited him to spring training. |
| 11/12/20 | Chicago Cubs signed free agent CF Michael Hermosillo to a minor league contract and invited him to spring training. |
| 11/12/20 | Chicago Cubs signed free agent RF Michael Hermosillo. |
| 11/05/20 | Chicago Cubs signed free agent SS Abiatal Avelino. |
| 11/05/20 | Chicago Cubs signed free agent SS Abiatal Avelino to a minor league contract and invited him to spring training. |
| 11/05/20 | Chicago Cubs signed free agent SS Abiatal Avelino to a minor league contract and invited him to spring training. |
| 11/05/20 | Chicago Cubs traded SS Ronny Simon to Arizona Diamondbacks. PTBNL in Andrew Chafin trade, 8/31/2020 |
| 11/02/20 | Chicago Cubs activated RHP James Norwood from the 60-day injured list. |
| 11/02/20 | Chicago Cubs activated LHP Brad Wieck from the 60-day injured list. |
| 11/02/20 | Chicago Cubs activated RHP Manuel Rodriguez from the 60-day injured list. |