Orioles Roster & Staff
Transactions
| Date | Transaction |
| 02/28/18 | RHP Ryan Meisinger assigned to Baltimore Orioles. |
| 02/28/18 | Baltimore Orioles invited non-roster CF Jaycob Brugman to spring training. |
| 02/28/18 | RHP Steven Klimek assigned to Baltimore Orioles. |
| 02/27/18 | C Ben Breazeale assigned to Baltimore Orioles. |
| 02/27/18 | 1B Preston Palmeiro assigned to Baltimore Orioles. |
| 02/26/18 | Baltimore Orioles signed free agent 1B Pedro Alvarez to a minor league contract and invited him to spring training. |
| 02/25/18 | RHP Ralston Cash assigned to Baltimore Orioles. |
| 02/25/18 | LHP Luis Gonzalez assigned to Baltimore Orioles. |
| 02/25/18 | C Martin Cervenka assigned to Baltimore Orioles. |
| 02/25/18 | Baltimore Orioles sent RF Jaycob Brugman outright to Norfolk Tides. |
| 02/24/18 | Baltimore Orioles invited non-roster CF Craig Gentry to spring training. |
| 02/24/18 | 1B Aderlin Rodriguez assigned to Baltimore Orioles. |
| 02/24/18 | IF Adrian Marin assigned to Baltimore Orioles. |
| 02/24/18 | RHP Lucas Long assigned to Baltimore Orioles. |
| 02/24/18 | OF Jake Ring assigned to Baltimore Orioles. |
| 02/24/18 | RHP James Teague assigned to Baltimore Orioles. |
| 02/24/18 | C Armando Araiza assigned to Baltimore Orioles. |
| 02/24/18 | OF T.J. Nichting assigned to Baltimore Orioles. |
| 02/24/18 | OF Ryan McKenna assigned to Baltimore Orioles. |
| 02/24/18 | OF Ademar Rifaela assigned to Baltimore Orioles. |
| 02/24/18 | 3B Jomar Reyes assigned to Baltimore Orioles. |
| 02/24/18 | IF Ryan Ripken assigned to Baltimore Orioles. |
| 02/24/18 | IF Drew Dosch assigned to Baltimore Orioles. |
| 02/24/18 | LHP Keegan Akin assigned to Baltimore Orioles. |
| 02/24/18 | IF Kirvin Moesquit assigned to Baltimore Orioles. |
| 02/23/18 | RHP Matt Wotherspoon assigned to Baltimore Orioles. |
| 02/23/18 | Baltimore Orioles signed free agent RHP Moises Nolasco to a minor league contract. |
| 02/23/18 | LHP Paul Fry assigned to Baltimore Orioles. |
| 02/23/18 | LHP John Means assigned to Baltimore Orioles. |
| 02/23/18 | SS Mason McCoy assigned to Baltimore Orioles. |
| 02/23/18 | Baltimore Orioles signed free agent RHP Jose Alejandro to a minor league contract. |
| 02/23/18 | Baltimore Orioles signed free agent RHP Diogenes Almengo to a minor league contract. |
| 02/21/18 | Baltimore Orioles signed free agent LF Colby Rasmus to a minor league contract and invited him to spring training. |
| 02/21/18 | Baltimore Orioles signed free agent RHP Chris Tillman. |
| 02/21/18 | Baltimore Orioles designated CF Jaycob Brugman for assignment. |
| 02/19/18 | Baltimore Orioles signed free agent RF Alex Presley to a minor league contract and invited him to spring training. |
| 02/16/18 | Jimmy Yacabonis changed number to . |
| 02/15/18 | Baltimore Orioles signed free agent RHP Andrew Cashner. |
| 02/15/18 | Baltimore Orioles placed LHP Zach Britton on the 60-day disabled list. Right Achilles surgery. |
| 02/09/18 | Baltimore Orioles signed free agent LHP David Holmberg to a minor league contract. |
| 02/02/18 | Milwaukee Brewers traded C Andrew Susac to Baltimore Orioles for Player To Be Named Later. |
| 02/01/18 | Baltimore Orioles signed free agent LHP Elvis Araujo to a minor league contract. |
| 02/01/18 | Baltimore Orioles invited non-roster OF DJ Stewart to spring training. |
| 02/01/18 | Baltimore Orioles invited non-roster OF Cedric Mullins to spring training. |
| 02/01/18 | Baltimore Orioles invited non-roster SS Ryan Mountcastle to spring training. |
| 02/01/18 | Mike Wright changed number to 43. |
| 02/01/18 | Baltimore Orioles invited non-roster SS Erick Salcedo to spring training. |
| 02/01/18 | Baltimore Orioles invited non-roster SS Luis Sardinas to spring training. |