The Stockholm International Youth Science Seminar (SIYSS) is an annual gathering of young scientists from around the world, during which festivities are held, celebrating the Swedish Federation of Young Scientists’ Nobel Prize winners.

The first Seminar was held in 1976 and was organized by The Swedish Federation of Young Scientists, after being inspired by the Society for Science and the Public. Following its tremendous initial success, the SYSS program has continued to be held, integrating a Swedish science conference, during which the Nobel Prize is awarded.

The program strives to further international understanding and friendship, and brings together young people from around the world who share similar interests. Participants are selected through a variety of ways; some are winners of other science fairs in their home country, others represent science organizations for youth or are selected for their talent by their local universities. Regardless of their backgrounds, all of the participants share one thing: tremendous interest in the natural sciences and curiosity for other people and cultures.