Guardians Roster & Staff
Transactions
| Date | Transaction |
| 06/30/18 | Cleveland Indians sent RHP Carlos Carrasco on a rehab assignment to Akron RubberDucks. |
| 06/27/18 | Cleveland Indians signed RHP Brendan Meyer. |
| 06/21/18 | Cleveland Indians signed OF Ruben Cardenas. |
| 06/19/18 | Cleveland Indians signed RHP Cody Morris. |
| 06/19/18 | Cleveland Indians signed RHP Lenny Torres. |
| 06/19/18 | Cleveland Indians selected the contract of RHP George Kontos from Columbus Clippers. |
| 06/19/18 | Cleveland Indians placed RHP Evan Marshall on the 10-day disabled list. Right elbow inflammation. |
| 06/18/18 | Cleveland Indians signed free agent LHP Marc Rzepczynski to a minor league contract. |
| 06/18/18 | Cleveland Indians activated 1B Yonder Alonso. |
| 06/18/18 | Cleveland Indians optioned CF Greg Allen to Columbus Clippers. |
| 06/17/18 | Cleveland Indians placed LHP Tyler Olson on the 10-day disabled list. Left latissimus dorsi strain. |
| 06/17/18 | Cleveland Indians placed RHP Carlos Carrasco on the 10-day disabled list. Right elbow contusion. |
| 06/17/18 | Cleveland Indians recalled RHP Evan Marshall from Columbus Clippers. |
| 06/17/18 | Cleveland Indians recalled Shane Bieber from Columbus Clippers. |
| 06/17/18 | Cleveland Indians signed free agent C Brandon Benavente to a minor league contract. |
| 06/16/18 | Cleveland Indians signed SS Connor Smith. |
| 06/16/18 | Cleveland Indians signed RHP Kyle Marman. |
| 06/16/18 | Cleveland Indians signed RHP Jack DeGroat. |
| 06/16/18 | Cleveland Indians sent LF Melky Cabrera outright to Columbus Clippers. |
| 06/16/18 | Cleveland Indians signed RHP Brian Eichhorn. |
| 06/15/18 | 1B Yonder Alonso roster status changed by Cleveland Indians. |
| 06/15/18 | Cleveland Indians activated RF Tyler Naquin from the 10-day disabled list. |
| 06/14/18 | Cleveland Indians designated LF Melky Cabrera for assignment. |
| 06/14/18 | Cleveland Indians activated RF Brandon Guyer from the 10-day disabled list. |
| 06/14/18 | Cleveland Indians sent LHP Ryan Merritt on a rehab assignment to Columbus Clippers. |
| 06/13/18 | Cleveland Indians signed RHP Liam Jenkins. |
| 06/13/18 | Cleveland Indians signed RHP Nick Sandlin. |
| 06/13/18 | Cleveland Indians signed SS Richard Palacios. |
| 06/13/18 | Cleveland Indians signed 3B Raynel Delgado. |
| 06/13/18 | Cleveland Indians signed RHP Alex Royalty. |
| 06/13/18 | Cleveland Indians signed RHP Robert Broom. |
| 06/13/18 | Cleveland Indians signed RHP Thomas Ponticelli. |
| 06/13/18 | Cleveland Indians signed C Bryan Lavastida. |
| 06/13/18 | Cleveland Indians signed SS Gionti Turner. |
| 06/13/18 | Cleveland Indians signed RHP Aaron Pinto. |
| 06/13/18 | Cleveland Indians signed LHP Eli Lingos. |
| 06/13/18 | Cleveland Indians signed C Eric Rodriguez. |
| 06/13/18 | Cleveland Indians signed LHP Adam Scott. |
| 06/13/18 | Cleveland Indians signed LHP Jake Miednik. |
| 06/13/18 | Cleveland Indians signed LHP Kellen Rholl. |
| 06/13/18 | Cleveland Indians signed OF Billy Wilson. |
| 06/13/18 | Cleveland Indians signed LHP Tim Herrin. |
| 06/13/18 | Cleveland Indians signed OF Jonathan Engelmann. |
| 06/13/18 | Cleveland Indians signed RHP Shane McCarthy. |
| 06/13/18 | Cleveland Indians signed SS Daniel Schneemann. |
| 06/12/18 | Cleveland Indians optioned C Francisco Mejia to Columbus Clippers. |
| 06/12/18 | Cleveland Indians recalled Adam Plutko from Columbus Clippers. |
| 06/11/18 | Cleveland Indians recalled Francisco Mejia from Columbus Clippers. |
| 06/11/18 | Cleveland Indians optioned RHP Evan Marshall to Columbus Clippers. |
| 06/08/18 | Cleveland Indians signed free agent LHP Ronald Parra to a minor league contract. |
| 06/08/18 | Cleveland Indians traded 2B Jon Berti to Toronto Blue Jays. |
| 06/06/18 | Cleveland Indians signed free agent RHP Erick Heredia to a minor league contract. |
| 06/06/18 | Cleveland Indians sent OF Tyler Naquin on a rehab assignment to Columbus Clippers. |
| 06/05/18 | Cleveland Indians sent LHP Jeff Beliveau outright to Columbus Clippers. |
| 06/05/18 | Cleveland Indians activated RF Lonnie Chisenhall from the 10-day disabled list. |
| 06/05/18 | Cleveland Indians optioned CF Bradley Zimmer to Columbus Clippers. |
| 06/03/18 | Cleveland Indians signed free agent RHP George Kontos to a minor league contract. |
| 06/03/18 | Cleveland Indians sent RF Tyler Naquin on a rehab assignment to Akron RubberDucks. |
| 06/02/18 | Cleveland Indians designated LHP Jeff Beliveau for assignment. |
| 06/02/18 | Cleveland Indians signed free agent RHP Adenys Bautista to a minor league contract. |
| 06/02/18 | Cleveland Indians signed free agent LHP Oliver Perez. |
| 06/02/18 | Cleveland Indians signed free agent LHP David Flores to a minor league contract. |
| 06/02/18 | Cleveland Indians signed free agent LHP Steven Perez to a minor league contract. |
| 06/01/18 | Cleveland Indians optioned RHP Shane Bieber to Columbus Clippers. |
| 06/01/18 | Cleveland Indians signed free agent LHP Yeury Gervacio to a minor league contract. |
| 06/01/18 | Cleveland Indians signed free agent RHP Yonaiker Garcia to a minor league contract. |
| 06/01/18 | Bradley Zimmer roster status changed by Cleveland Indians. |