| CERN Winter School on Supergravity, Strings and Gauge Theory 2021 (via Zoom) |
Monday, 1 February 2021 to Friday, 5 February 2021 |
| Discussion on the physics of Four Tops |
Friday, 19 February 2021 to Friday, 19 February 2021 |
| 22nd MCnet Meeting |
Monday, 19 April 2021 to Wednesday, 21 April 2021 |
| Jets and their substructure from LHC data |
Monday, 31 May 2021 to Thursday, 3 June 2021 |
| Positivity and the Bootstrap |
Monday, 31 May 2021 to Wednesday, 2 June 2021 |
| Gauge/Gravity Duality 2021 |
Monday, 26 July 2021 to Wednesday, 28 July 2021 |
| International Neutrino Summer School 2021 |
Monday, 2 August 2021 to Friday, 13 August 2021 |
| Ultra-High-Frequency GWs: A Theory and Technology Roadmap |
Tuesday, 12 October 2021 to Friday, 15 October 2021 |
| CERN Theory Department Retreat 2021 |
Wednesday, 3 November 2021 to Friday, 5 November 2021 |