Departures May 2013
| RETIRED STAFF | ||
| STAFF | ||
| FELLOW | ||
| LIU Guoming | LBC | Leaves CERN |
| NIEWIADOMSKI Hubert | TOT | User 100% |
| QUERTENMONT Loic | CMG-PS | User 40% |
| DOCT | ||
| BARSCHEL Colin | LBD | User 100% |
| TECH | ||
| NAARANOJA Tiina Sirea | ESE-ME | Leaves CERN |
| PEIXOTO CARVALHO Henriques Manuel | EDU | User 100% |
| SPANG Andrea | CMX | Leaves CERN |
| PDAS | ||
| CASS/SASS | ||
| LIPNIACKA Anna | ADP-CO | |
| PJAS | ||
| ALLPORT Philip Patrick | ADO | User 100% |
| EASO Sajan | LBD | User 100% |
| LASSNIG Mario | ADP-CO | Becomes STAFF |
| USAS | ||
| DAGNOLO Raffaele Tito | CMG-PS | |
| TRAINEE | ||
| ADMI | ||
| GIUFFREDI Rita | CMX-DS | |