Brewers Roster & Staff
Transactions
| Date | Transaction |
| 06/30/21 | Milwaukee Brewers selected the contract of LHP Aaron Ashby from Nashville Sounds. |
| 06/30/21 | Milwaukee Brewers designated RHP Bobby Wahl for assignment. |
| 06/30/21 | Los Angeles Dodgers claimed RHP Bobby Wahl off waivers from Milwaukee Brewers. |
| 06/30/21 | Milwaukee Brewers optioned 3B Pablo Reyes to Nashville Sounds. |
| 06/28/21 | Milwaukee Brewers sent LF Derek Fisher outright to Nashville Sounds. |
| 06/28/21 | Arizona Diamondbacks traded CF Matt Lipka to Milwaukee Brewers for cash. |
| 06/28/21 | Milwaukee Brewers optioned RHP Ryan Weber to Nashville Sounds. |
| 06/28/21 | Milwaukee Brewers recalled 3B Pablo Reyes from Nashville Sounds. |
| 06/25/21 | Pittsburgh Pirates traded LF Troy Stokes Jr. and RHP Jandel Gustave to Milwaukee Brewers for C Samuel Escudero. |
| 06/25/21 | Milwaukee Brewers signed free agent C Jason Ollarve to a minor league contract. |
| 06/25/21 | Pittsburgh Pirates traded LF Troy Stokes Jr. and RHP Jandel Gustave to Milwaukee Brewers for C Samuel Escudero. |
| 06/25/21 | Pittsburgh Pirates traded LF Troy Stokes Jr. and RHP Jandel Gustave to Milwaukee Brewers for C Samuel Escudero. |
| 06/24/21 | Milwaukee Brewers sent RHP Zack Godley outright to Nashville Sounds. |
| 06/23/21 | Milwaukee Brewers recalled 2B Keston Hiura from Nashville Sounds. |
| 06/23/21 | Milwaukee Brewers placed 1B Daniel Vogelbach on the 10-day injured list. Strained left hamstring. |
| 06/22/21 | Milwaukee Brewers selected the contract of RHP Miguel Sanchez from Nashville Sounds. |
| 06/22/21 | Milwaukee Brewers recalled RHP Ryan Weber from Nashville Sounds. |
| 06/22/21 | Milwaukee Brewers activated CF Tyrone Taylor from the 10-day injured list. |
| 06/22/21 | Milwaukee Brewers placed LHP Brett Anderson on the 10-day injured list. Right knee contusion. |
| 06/22/21 | Seattle Mariners claimed SS Jake Hager off waivers from Milwaukee Brewers. |
| 06/22/21 | Milwaukee Brewers signed free agent RHP Justin Miller to a minor league contract. |
| 06/22/21 | Milwaukee Brewers designated LF Derek Fisher for assignment. |
| 06/22/21 | Milwaukee Brewers optioned LHP Hoby Milner to Nashville Sounds. |
| 06/21/21 | Milwaukee Brewers designated RHP Zack Godley for assignment. |
| 06/21/21 | Milwaukee Brewers selected the contract of RHP Jake Cousins from Nashville Sounds. |
| 06/20/21 | Milwaukee Brewers sent LHP Angel Perdomo on a rehab assignment to Nashville Sounds. |
| 06/18/21 | Milwaukee Brewers activated 2B Kolten Wong from the 10-day injured list. |
| 06/18/21 | Milwaukee Brewers selected the contract of RHP Zack Godley from Nashville Sounds. |
| 06/18/21 | Milwaukee Brewers designated SS Jake Hager for assignment. |
| 06/18/21 | Milwaukee Brewers optioned RHP Eric Yardley to Nashville Sounds. |
| 06/18/21 | Milwaukee Brewers optioned 3B Pablo Reyes to Nashville Sounds. |
| 06/17/21 | Milwaukee Brewers activated LF Derek Fisher. |
| 06/17/21 | Milwaukee Brewers optioned 2B Tim Lopes to Nashville Sounds. |
| 06/17/21 | Milwaukee Brewers signed free agent RHP Jesus Rivero to a minor league contract. |
| 06/16/21 | Milwaukee Brewers optioned RHP Ryan Weber to Nashville Sounds. |
| 06/16/21 | Milwaukee Brewers claimed RHP Ryan Weber off waivers from Boston Red Sox. |
| 06/16/21 | Milwaukee Brewers sent RHP Chad Sobotka outright to Nashville Sounds. |
| 06/14/21 | Milwaukee Brewers activated RHP Hunter Strickland. |
| 06/14/21 | Milwaukee Brewers optioned RHP Patrick Weigel to Nashville Sounds. |
| 06/12/21 | Milwaukee Brewers recalled 2B Tim Lopes from Nashville Sounds. |
| 06/12/21 | Milwaukee Brewers placed CF Tyrone Taylor on the 10-day injured list. Right shoulder strain. |
| 06/12/21 | Milwaukee Brewers placed 3B Travis Shaw on the 60-day injured list. Left shoulder dislocation. |
| 06/12/21 | Los Angeles Angels traded RHP Hunter Strickland to Milwaukee Brewers for cash. |
| 06/11/21 | Milwaukee Brewers signed free agent LHP Leoni De La Cruz to a minor league contract. |
| 06/11/21 | Milwaukee Brewers signed free agent RHP Brooks Hall to a minor league contract. |
| 06/10/21 | Milwaukee Brewers recalled RHP Patrick Weigel from Nashville Sounds. |
| 06/10/21 | Milwaukee Brewers placed 3B Travis Shaw on the 10-day injured list. Left shoulder dislocation. |
| 06/08/21 | Milwaukee Brewers selected the contract of 2B Jace Peterson from Nashville Sounds. |
| 06/07/21 | Milwaukee Brewers optioned 2B Keston Hiura to Nashville Sounds. |
| 06/04/21 | Milwaukee Brewers signed free agent RHP Arielbi Gonzalez to a minor league contract. |
| 06/04/21 | Milwaukee Brewers signed free agent RHP Anthony Perez to a minor league contract. |
| 06/04/21 | Milwaukee Brewers placed 2B Kolten Wong on the 10-day injured list. Strained left oblique. |
| 06/04/21 | Milwaukee Brewers sent LF Derek Fisher on a rehab assignment to Nashville Sounds. |
| 06/04/21 | Milwaukee Brewers recalled 3B Pablo Reyes from Nashville Sounds. |
| 06/03/21 | Milwaukee Brewers recalled LHP Hoby Milner from Nashville Sounds. |
| 06/02/21 | Milwaukee Brewers optioned RHP Alec Bettinger to Nashville Sounds. |
| 06/01/21 | Milwaukee Brewers recalled CF Tyrone Taylor from Nashville Sounds. |
| 06/01/21 | Milwaukee Brewers placed CF Lorenzo Cain on the 10-day injured list. Right hamstring strain. |