Pirates Roster & Staff
Transactions
| Date | Transaction |
| 10/31/18 | 2B Josh Harrison elected free agency. |
| 10/30/18 | Pittsburgh Pirates signed free agent OF Patrick Kivlehan to a minor league contract and invited him to spring training. |
| 10/29/18 | SS Jordy Mercer elected free agency. |
| 10/04/18 | Pittsburgh Pirates sent LHP Nik Turley outright to Indianapolis Indians. |
| 10/02/18 | Pittsburgh Pirates signed free agent C Luis Hernandez to a minor league contract. |
| 10/02/18 | Pittsburgh Pirates signed free agent RHP Luis Ortiz to a minor league contract. |
| 10/02/18 | Pittsburgh Pirates recalled Luis Escobar from Bristol Pirates. |
| 10/02/18 | Pittsburgh Pirates activated RF Gregory Polanco from the 10-day injured list. |
| 10/02/18 | Pittsburgh Pirates signed free agent RHP Felipe Mezquita to a minor league contract. |
| 10/02/18 | Pittsburgh Pirates recalled Jesus Liranzo from Indianapolis Indians. |
| 10/02/18 | Pittsburgh Pirates recalled RHP Alex McRae from Indianapolis Indians. |
| 10/02/18 | Pittsburgh Pirates recalled SS Max Moroff from Indianapolis Indians. |
| 10/02/18 | Pittsburgh Pirates recalled RHP Dario Agrazal from Altoona Curve. |