Mets Roster & Staff
Transactions
| Date | Transaction |
| 10/30/20 | New York Mets claimed RHP Jacob Barnes off waivers. |
| 10/30/20 | New York Mets claimed RHP Nick Tropeano off waivers from Pittsburgh Pirates. |
| 10/30/20 | New York Mets claimed P Jacob Barnes off waivers. |
| 10/30/20 | New York Mets claimed RHP Jacob Barnes off waivers. |
| 10/30/20 | New York Mets claimed P Jacob Barnes off waivers. |
| 10/30/20 | New York Mets claimed RHP Jacob Barnes off waivers from Los Angeles Angels. |
| 10/28/20 | LHP Justin Wilson elected free agency. |
| 10/28/20 | 3B Todd Frazier elected free agency. |
| 10/28/20 | New York Mets sent RF Ryan Cordell outright to Syracuse Mets. |
| 10/28/20 | New York Mets activated LF Yoenis Cespedes from the restricted list. |
| 10/28/20 | New York Mets activated RHP Marcus Stroman from the restricted list. |
| 10/28/20 | New York Mets activated C Rene Rivera from the 60-day injured list. |
| 10/28/20 | RHP Rick Porcello elected free agency. |
| 10/28/20 | C Robinson Chirinos elected free agency. |
| 10/28/20 | RHP Marcus Stroman elected free agency. |
| 10/28/20 | C Rene Rivera elected free agency. |
| 10/28/20 | RHP Erasmo Ramirez elected free agency. |
| 10/28/20 | New York Mets activated 2B Jed Lowrie from the 60-day injured list. |
| 10/28/20 | RHP Jared Hughes elected free agency. |
| 10/28/20 | LF Yoenis Cespedes elected free agency. |
| 10/28/20 | New York Mets activated 2B Eduardo Nunez from the 60-day injured list. |
| 10/28/20 | C Wilson Ramos elected free agency. |
| 10/28/20 | 2B Jed Lowrie elected free agency. |
| 10/28/20 | RHP Michael Wacha elected free agency. |
| 10/28/20 | CF Jake Marisnick elected free agency. |
| 10/28/20 | 2B Eduardo Nunez elected free agency. |
| 10/26/20 | New York Mets claimed 2B Robel Garcia off waivers from Cincinnati Reds. |
| 10/26/20 | New York Mets designated RF Ryan Cordell for assignment. |