Royals Roster & Staff
Transactions
| Date | Transaction |
| 05/31/12 | Kansas City Royals signed free agent IF Wander Franco to a minor league contract. |
| 05/31/12 | Kansas City Royals signed free agent OF Misael Bueno to a minor league contract. |
| 05/31/12 | Kansas City Royals signed free agent C Luis Lara to a minor league contract. |
| 05/29/12 | Kansas City Royals optioned Nate Adcock to Omaha Storm Chasers. |
| 05/29/12 | Kansas City Royals recalled Vin Mazzaro from Omaha Storm Chasers. |
| 05/24/12 | Kansas City Royals signed free agent 2B Offerman Collado to a minor league contract. |
| 05/22/12 | Blake Wood roster status changed by Kansas City Royals. |
| 05/22/12 | Kansas City Royals placed 2B Chris Getz on the 15-day disabled list. Left ribcage contusion. |
| 05/22/12 | Kansas City Royals selected the contract of Will Smith from Omaha Storm Chasers. |
| 05/19/12 | Everett Teaford roster status changed by Kansas City Royals. |
| 05/19/12 | Kansas City Royals recalled Nate Adcock from Omaha Storm Chasers. |
| 05/17/12 | Kansas City Royals optioned Vin Mazzaro to Omaha Storm Chasers. |
| 05/17/12 | Kansas City Royals optioned Nate Adcock to Omaha Storm Chasers. |
| 05/17/12 | Kansas City Royals recalled LHP Everett Teaford from Omaha Storm Chasers. |
| 05/17/12 | Kansas City Royals recalled Louis Coleman from Omaha Storm Chasers. |
| 05/14/12 | Kansas City Royals recalled Nate Adcock from Omaha Storm Chasers. |
| 05/14/12 | Kansas City Royals placed LHP Danny Duffy on the 15-day disabled list. Left elbow tightness. |
| 05/12/12 | Kansas City Royals activated RHP Greg Holland from the 15-day disabled list. |
| 05/12/12 | Kansas City Royals signed free agent LHP Doug Davis to a minor league contract. |
| 05/12/12 | Kansas City Royals optioned Nate Adcock to Omaha Storm Chasers. |
| 05/09/12 | Kansas City Royals placed LHP Jonathan Sanchez on the 15-day disabled list retroactive to May 8, 2012. Left biceps tendinitis. |
| 05/09/12 | Kansas City Royals recalled Johnny Giavotella from Omaha Storm Chasers. |
| 05/08/12 | Kansas City Royals recalled Vin Mazzaro from Omaha Storm Chasers. |
| 05/08/12 | Kansas City Royals optioned Tommy Hottovy to Omaha Storm Chasers. |
| 05/05/12 | Kansas City Royals optioned Louis Coleman to Omaha Storm Chasers. |
| 05/05/12 | Kansas City Royals activated RHP Felipe Paulino from the 15-day disabled list. |
| 05/03/12 | Kansas City Royals selected the contract of Irving Falu from Omaha Storm Chasers. |
| 05/03/12 | Kansas City Royals transferred RHP Joakim Soria from the 15-day disabled list to the 60-day disabled list. |
| 05/03/12 | Kansas City Royals placed 2B Yuniesky Betancourt on the 15-day disabled list retroactive to May 2, 2012. Sprained right ankle. |