Stockholm International Youth Science Seminar (SIYSS) is an annual weeklong event for young international scientists, arranged in connection with the Nobel festivities by the SIYSS Committee of the Swedish Federation of Young Scientists.

The history of SIYSS dates as far back as 1976 when the first seminar was organized by the Swedish Federation of Young Scientists, with inspiration from Society for Science & the Public in USA. Turning out a great success, the SIYSS program has continued combining the encounter with Swedish science and the Nobel Prize Awarding Ceremonies with an intense social program ever since then.

The program aims to promote international understanding and friendship, bringing together young people from all over the world with similar interests. The participants are selected in different ways; some are winners of national science fairs, others represent organizations for young scientists or are selected by merit at their home universities. Whatever their background, they all have two things in common: a great interest in natural sciences and a curiosity for other cultures and people.

Participating countries

Scientists from the following countries participate in the SIYSS as of 2009:

Also, every year winners of the EU Contest and the Intel ISEF are participating in the event.