| List name | Post address | Description |
|---|---|---|
| NXmanager | nxmanager@nikhef.nl | |
| OlgaIgonkinaFoundation | olgaigonkinafoundation@nikhef.nl | Mailing list for the Olga Igonkina Foundation |
| OlgaIgonkinaScholarship | olgaigonkinascholarship@nikhef.nl | List for applications to the Olga Igonkina Scholarship |
| OmniSens | omnisens@nikhef.nl | OmniSens/6D project list. |
| Opening | opening@nikhef.nl | |
| Opp | opp@nikhef.nl | |
| Oudmedewerkers | oudmedewerkers@nikhef.nl | Nikhef nieuws voor oud-medewerkers. |
| PDP | pdp@nikhef.nl | Nikhef Physics Data Processing Group |
| Phasecamera | phasecamera@nikhef.nl | |
| Phdcouncil | phdcouncil@nikhef.nl | List for members of Nikhef's PhD council |