The OECD Nuclear Energy Agency (NEA), Idaho National Laboratory, and International Atomic Energy Agency (IAEA) are co-organising the Sixth International Workshop on Structural Materials for Innovative Nuclear Systems (SMINS-6). The workshop will be held in Idaho Falls (ID, US) from 12 to 15 September 2022, hosted by Idaho National Laboratory, in co-operation with the International Atomic Energy Agency (IAEA).