Orioles Roster & Staff
Transactions
| Date | Transaction |
| 04/30/18 | Baltimore Orioles optioned CF Joey Rickard to Norfolk Tides. |
| 04/28/18 | Baltimore Orioles optioned LHP Tanner Scott to Norfolk Tides. |
| 04/28/18 | Baltimore Orioles recalled Joey Rickard from Norfolk Tides. |
| 04/27/18 | Baltimore Orioles sent DH Mark Trumbo on a rehab assignment to Norfolk Tides. |
| 04/25/18 | Baltimore Orioles placed 3B Tim Beckham on the 10-day disabled list retroactive to April 24, 2018. Left groin strain. |
| 04/25/18 | Baltimore Orioles activated 3B Jace Peterson. |
| 04/24/18 | Baltimore Orioles claimed 2B Jace Peterson off waivers from New York Yankees. |
| 04/24/18 | Baltimore Orioles transferred RHP Gabriel Ynoa from the 10-day disabled list to the 60-day disabled list. Right shin stress reaction. |
| 04/20/18 | Baltimore Orioles recalled Tanner Scott from Norfolk Tides. |
| 04/20/18 | Baltimore Orioles optioned SS Engelb Vielma to Norfolk Tides. |
| 04/17/18 | Baltimore Orioles selected the contract of 2B Luis Sardinas from Norfolk Tides. |
| 04/16/18 | Baltimore Orioles optioned RHP David Hess to Norfolk Tides. |
| 04/16/18 | Baltimore Orioles signed free agent RHP Pablo Falconett to a minor league contract. |
| 04/15/18 | Baltimore Orioles recalled David Hess from Norfolk Tides. |
| 04/15/18 | Baltimore Orioles optioned LHP Donnie Hart to Norfolk Tides. |
| 04/14/18 | LHP Nestor Cortes Jr. returned to New York Yankees from Baltimore Orioles. |
| 04/14/18 | Baltimore Orioles recalled RHP Alex Cobb from Bowie Baysox. |
| 04/14/18 | Baltimore Orioles placed 2B Jonathan Schoop on the 10-day disabled list. Right oblique strain. |
| 04/13/18 | Baltimore Orioles recalled Donnie Hart from Norfolk Tides. |
| 04/12/18 | Baltimore Orioles optioned RHP Yefry Ramirez to Norfolk Tides. |
| 04/11/18 | Baltimore Orioles recalled Engelb Vielma from Norfolk Tides. |
| 04/11/18 | Baltimore Orioles optioned RHP Hunter Harvey to Bowie Baysox. |
| 04/10/18 | Baltimore Orioles designated LHP Nestor Cortes Jr. for assignment. |
| 04/10/18 | Baltimore Orioles recalled Yefry Ramirez from Norfolk Tides. |
| 04/10/18 | Baltimore Orioles sent DH Mark Trumbo on a rehab assignment to Bowie Baysox. |
| 04/09/18 | Baltimore Orioles optioned LHP Tanner Scott to Norfolk Tides. |
| 04/09/18 | Baltimore Orioles recalled Hunter Harvey from Bowie Baysox. |
| 04/08/18 | Baltimore Orioles optioned RHP Jimmy Yacabonis to Norfolk Tides. |
| 04/08/18 | Baltimore Orioles recalled Tanner Scott from Norfolk Tides. |
| 04/07/18 | Baltimore Orioles placed RF Colby Rasmus on the 10-day disabled list. Left hip flexor strain. |
| 04/07/18 | Baltimore Orioles recalled Jimmy Yacabonis from Norfolk Tides. |
| 04/05/18 | Los Angeles Dodgers claimed RHP Alec Asher off waivers from Baltimore Orioles. |
| 04/05/18 | Baltimore Orioles sent RHP Michael Kelly outright to Bowie Baysox. |
| 04/02/18 | Baltimore Orioles signed free agent OF Michael Saunders to a minor league contract. |
| 04/02/18 | Baltimore Orioles traded RHP Jesus Liranzo to Los Angeles Dodgers for LHP Luis Ysla. |
| 04/02/18 | Baltimore Orioles traded RHP Stefan Crichton to Arizona Diamondbacks for cash. |
| 04/02/18 | Baltimore Orioles traded RHP Jesus Liranzo to Los Angeles Dodgers for LHP Luis Ysla. |