Giants Roster & Staff
Transactions
| Date | Transaction |
| 01/31/20 | San Francisco Giants signed free agent 2B Yolmer Sanchez to a minor league contract and invited him to spring training. |
| 01/31/20 | San Francisco Giants signed free agent 1B Darin Ruf to a minor league contract and invited him to spring training. |
| 01/31/20 | San Francisco Giants signed free agent 3B Pablo Sandoval to a minor league contract and invited him to spring training. |
| 01/29/20 | San Francisco Giants signed free agent RHP Erasmo Tortolero to a minor league contract. |
| 01/24/20 | San Francisco Giants sent RHP Jake Jewell outright to Sacramento River Cats. |
| 01/24/20 | San Francisco Giants sent RHP Trevor Oaks outright to Sacramento River Cats. |
| 01/21/20 | San Francisco Giants designated Jake Jewell for assignment. |
| 01/21/20 | San Francisco Giants claimed RHP Luis Madero off waivers from Los Angeles Angels. |
| 01/18/20 | San Francisco Giants signed free agent C Rob Brantly to a minor league contract and invited him to spring training. |
| 01/16/20 | San Francisco Giants signed free agent LHP Drew Smyly. |
| 01/16/20 | San Francisco Giants designated Trevor Oaks for assignment. |
| 01/15/20 | San Francisco Giants released 3B Zack Cozart. |
| 01/14/20 | San Francisco Giants signed free agent RHP Tyson Ross to a minor league contract and invited him to spring training. |
| 01/13/20 | San Francisco Giants designated 3B Zack Cozart for assignment. |
| 01/13/20 | San Francisco Giants claimed RHP Jake Jewell off waivers from Los Angeles Angels. |
| 01/12/20 | San Francisco Giants signed free agent LHP Jerry Blevins to a minor league contract and invited him to spring training. |
| 01/06/20 | San Francisco Giants signed free agent C Chadwick Tromp to a minor league contract and invited him to spring training. |
| 01/06/20 | San Francisco Giants invited non-roster RHP Trey McNutt to spring training. |
| 01/06/20 | San Francisco Giants signed free agent OF Drew Robinson to a minor league contract and invited him to spring training. |
| 01/06/20 | San Francisco Giants signed free agent RF Joey Rickard to a minor league contract and invited him to spring training. |
| 01/06/20 | San Francisco Giants invited non-roster RHP Sam Wolff to spring training. |
| 01/06/20 | San Francisco Giants signed free agent RHP Rico Garcia to a minor league contract and invited him to spring training. |
| 01/06/20 | San Francisco Giants invited non-roster RHP Tyler Cyr to spring training. |
| 01/06/20 | San Francisco Giants invited non-roster RHP Carlos Navas to spring training. |
| 01/06/20 | San Francisco Giants invited non-roster 1B Zach Green to spring training. |
| 01/06/20 | San Francisco Giants invited non-roster RHP Sean Hjelle to spring training. |
| 01/06/20 | San Francisco Giants signed free agent RHP Matt Carasiti to a minor league contract and invited him to spring training. |
| 01/06/20 | San Francisco Giants invited non-roster SS Cristhian Adames to spring training. |
| 01/06/20 | San Francisco Giants signed free agent OF Jamie Westbrook to a minor league contract and invited him to spring training. |
| 01/06/20 | San Francisco Giants signed free agent RHP Andrew Triggs to a minor league contract and invited him to spring training. |
| 01/06/20 | San Francisco Giants invited non-roster RHP Raffi Vizcaino to spring training. |
| 01/06/20 | San Francisco Giants signed free agent LHP Sam Moll to a minor league contract and invited him to spring training. |
| 01/06/20 | San Francisco Giants invited non-roster C Joey Bart to spring training. |
| 01/06/20 | San Francisco Giants signed free agent C Tyler Heineman to a minor league contract and invited him to spring training. |
| 01/01/20 | San Francisco Giants signed free agent RHP Jesus Liranzo to a minor league contract. |