Orioles Roster & Staff
Transactions
| Date | Transaction |
| 09/30/13 | Baltimore Orioles recalled Dylan Bundy from Bowie Baysox. |
| 09/30/13 | Baltimore Orioles recalled LHP Tsuyoshi Wada from Norfolk Tides. |
| 09/30/13 | Eric Beaulac roster status changed by Baltimore Orioles. |
| 09/25/13 | Manny Machado roster status changed by Baltimore Orioles. |
| 09/25/13 | Baltimore Orioles selected the contract of LF Jason Pridie from Norfolk Tides. |
| 09/25/13 | Baltimore Orioles placed 3B Manny Machado on the 60-day disabled list retroactive to September 24, 2013. Torn medial patellofemoral ligament in left knee. |
| 09/24/13 | Baltimore Orioles released 3B Wilson Betemit. |
| 09/21/13 | Baltimore Orioles recalled LHP Zach Britton from Aberdeen IronBirds. |
| 09/21/13 | Baltimore Orioles recalled Mike Belfiore from Norfolk Tides. |
| 09/18/13 | Baltimore Orioles signed free agent RHP Victor Romero to a minor league contract. |
| 09/17/13 | Baltimore Orioles activated LF Steve Pearce from the 15-day disabled list. |
| 09/16/13 | Baltimore Orioles designated 3B Wilson Betemit for assignment. |
| 09/16/13 | Henry Urrutia roster status changed by Baltimore Orioles. |
| 09/13/13 | Baltimore Orioles placed LF Henry Urrutia on the restricted list. |
| 09/13/13 | Baltimore Orioles selected the contract of Dan Johnson from Norfolk Tides. |
| 09/09/13 | Baltimore Orioles sent Alex Liddi outright to Norfolk Tides. |
| 09/07/13 | Baltimore Orioles signed free agent RHP Ofelky Peralta to a minor league contract. |
| 09/06/13 | Baltimore Orioles selected the contract of Chris Dickerson from Norfolk Tides. |
| 09/06/13 | Baltimore Orioles designated Alex Liddi for assignment. |
| 09/05/13 | Baltimore Orioles optioned Zach Britton to Aberdeen IronBirds. |
| 09/05/13 | Baltimore Orioles activated RHP Jason Hammel from the 15-day disabled list. |
| 09/05/13 | Baltimore Orioles recalled Steve Johnson from Norfolk Tides. |
| 09/05/13 | Houston Astros claimed RF Eric Thames off waivers from Baltimore Orioles. |
| 09/05/13 | Baltimore Orioles sent C Taylor Teagarden outright to Norfolk Tides. |
| 09/03/13 | Baltimore Orioles recalled 2B Jonathan Schoop from Norfolk Tides. |
| 09/03/13 | Baltimore Orioles recalled RHP Josh Stinson from Norfolk Tides. |
| 09/03/13 | Baltimore Orioles recalled LF Henry Urrutia from Norfolk Tides. |
| 09/03/13 | Baltimore Orioles recalled 2B Ryan Flaherty from Frederick Keys. |
| 09/03/13 | Baltimore Orioles sent RHP Jason Hammel on a rehab assignment to Aberdeen IronBirds. |
| 09/02/13 | Baltimore Orioles recalled Zach Britton from Norfolk Tides. |
| 09/01/13 | Baltimore Orioles designated Eric Thames for assignment. |
| 09/01/13 | Baltimore Orioles designated Taylor Teagarden for assignment. |
| 09/01/13 | Baltimore Orioles selected the contract of C Chris Snyder from Norfolk Tides. |
| 09/01/13 | Baltimore Orioles recalled Wei-Yin Chen from GCL Orioles. |
| 09/01/13 | Baltimore Orioles recalled Steve Clevenger from Norfolk Tides. |