Mets Roster & Staff
Transactions
| Date | Transaction |
| 08/28/17 | New York Mets signed free agent RHP David Marcano to a minor league contract. |
| 08/28/17 | New York Mets optioned RHP Kevin McGowan to Las Vegas 51s. |
| 08/27/17 | New York Mets optioned RHP Robert Gsellman to Las Vegas 51s. |
| 08/27/17 | New York Mets activated RHP Seth Lugo from the 10-day injured list. |
| 08/27/17 | New York Mets recalled Kevin McGowan from Las Vegas 51s. |
| 08/26/17 | New York Mets selected the contract of RF Travis Taijeron from Las Vegas 51s. |
| 08/26/17 | New York Mets placed LF Yoenis Cespedes on the 10-day disabled list. Strained right hamstring. |
| 08/26/17 | New York Mets activated SS Jose Reyes from the 10-day disabled list. |
| 08/26/17 | New York Mets optioned RHP Kevin McGowan to Las Vegas 51s. |
| 08/25/17 | New York Mets activated RHP Jeurys Familia from the 60-day disabled list. |
| 08/25/17 | New York Mets placed LF Michael Conforto on the 10-day disabled list. Left shoulder dislocation. |
| 08/22/17 | New York Mets sent 3B David Wright on a rehab assignment to St. Lucie Mets. |
| 08/22/17 | New York Mets signed free agent LHP Brailin Gonzalez to a minor league contract. |
| 08/22/17 | New York Mets placed LHP Steven Matz on the 10-day disabled list retroactive to August 19, 2017. Irritation of ulnar nerve in left elbow |
| 08/22/17 | New York Mets recalled Kevin McGowan from Las Vegas 51s. |
| 08/21/17 | New York Mets sent RHP Matt Harvey on a rehab assignment to Binghamton Rumble Ponies. |
| 08/21/17 | New York Mets sent RHP Jeurys Familia on a rehab assignment to Brooklyn Cyclones. |
| 08/21/17 | AJ Ramos changed number to 44. |
| 08/20/17 | Los Angeles Dodgers traded RHP Jacob Rhame to New York Mets. |
| 08/19/17 | New York Mets activated LHP Tommy Milone from the 60-day disabled list. |
| 08/19/17 | New York Mets traded CF Curtis Granderson to Los Angeles Dodgers for Player To Be Named Later. |
| 08/19/17 | Chicago Cubs claimed C Rene Rivera off waivers from New York Mets. |
| 08/19/17 | New York Mets recalled C Kevin Plawecki from Las Vegas 51s. |
| 08/17/17 | New York Mets placed 3B Jose Reyes on the 10-day disabled list retroactive to August 13, 2017. Left oblique strain. |
| 08/17/17 | New York Mets recalled 3B Matt Reynolds from Las Vegas 51s. |
| 08/17/17 | New York Mets optioned RHP Kevin McGowan to Las Vegas 51s. |
| 08/17/17 | New York Mets recalled Gavin Cecchini from Las Vegas 51s. |
| 08/16/17 | New York Mets sent RHP Jeurys Familia on a rehab assignment to St. Lucie Mets. |
| 08/15/17 | New York Mets signed free agent RHP Neil Wagner to a minor league contract. |
| 08/15/17 | New York Mets placed RHP Seth Lugo on the 10-day disabled list retroactive to August 12, 2017. Right shoulder impingement. |
| 08/15/17 | Texas Rangers traded RF Travis Snider to New York Mets for cash. |
| 08/15/17 | New York Mets released RHP Fernando Salas. |
| 08/15/17 | Robert Gsellman roster status changed by New York Mets. |
| 08/14/17 | New York Mets signed free agent RHP Haniel Ogando to a minor league contract. |
| 08/13/17 | New York Mets selected the contract of Kevin McGowan from Las Vegas 51s. |
| 08/12/17 | New York Mets traded 2B Neil Walker and cash to Milwaukee Brewers for Player To Be Named Later. |
| 08/11/17 | New York Mets selected the contract of 1B Dominic Smith from Las Vegas 51s. |
| 08/11/17 | New York Mets designated RHP Fernando Salas for assignment. |
| 08/11/17 | New York Mets sent RHP Matt Harvey on a rehab assignment to Brooklyn Cyclones. |
| 08/10/17 | New York Mets activated CF Juan Lagares from the 10-day disabled list. |
| 08/09/17 | New York Mets traded RF Jay Bruce to Cleveland Indians for RHP Ryder Ryan. |
| 08/09/17 | New York Mets traded RF Jay Bruce to Cleveland Indians for RHP Ryder Ryan. |
| 08/02/17 | New York Mets sent LHP Josh Edgin outright to Las Vegas 51s. |
| 08/01/17 | New York Mets optioned SS Matt Reynolds to Las Vegas 51s. |
| 08/01/17 | New York Mets sent CF Juan Lagares on a rehab assignment to Binghamton Rumble Ponies. |
| 08/01/17 | New York Mets recalled SS Amed Rosario from Las Vegas 51s. |
| 08/01/17 | New York Mets recalled RHP Chasen Bradford from Las Vegas 51s. |