The conferences and symposia listed below are organised by national or international bodies for which NEA co-sponsorship or co-operation has been requested.
| 14‑17 February | PIME 2005 (Public Information Media Exchange) |
| Organiser | European Nuclear Society (ENS) |
| Where | Paris (Maison de la Chimie) |
| 14‑18 March | International Meeting on Clays in Natural and Engineered Barriers for Radioactive Waste Confinement |
| Organiser | Agence Nationale des Gestion des Déchets Radioactif (ANDRA) |
| Where | Tours, France |
| 21‑22 March | International Conference on Nuclear Power for the 21st Century |
| Organiser | Organised by the International Atomic Energy Agency and hosted by the French government, with the co-operation of the OECD |
| Where | Centre de Conférences Pierre Mendès-France, Paris, France |
| 18‑22 April | American Nuclear Society International Conference Monte Carlo 2005 – Advanced Monte Carlo for Radiation Physics, Particle Transport Simulation and Applications |
| Organiser | American Nuclear Society (ANS) |
| Where | Oak Ridge, USA |
| 24 May | Security of Energy Supply for Electricity Generation |
| Organiser | International Energy Agency (IEA) and the NEA |
| Where | Paris, France |
| 12‑15 September | International Topical Meeting on Probabilistic Safety Analysis, PSA 05 |
| Organiser | American Nuclear Society (ANS) |
| Where | San Francisco, California, USA |
| 12‑15 September | International Topical Meeting on Mathematics and Computation, Supercomputing, Reactor Physics and Nuclear Biological Applications (M&C 2005) |
| Organiser | American Nuclear Society (ANS) |
| Where | Avignon, France |
| 9‑13 October | GLOBAL 2005 – Nuclear Energy Systems for Future Generation and Global Sustainability |
| Organiser | Atomic Energy Society of Japan (AESJ) |
| Where | Tsukuba, Japan |
