Welcome Messages

Logo, ETH Zurich, Switzerland, University, Science, Technology
Professor Günther Dissertori
President of IChO 2023 and Rector of ETH Zurich

"We are very excited to host the 55th International Chemistry Olympiad 2023 in Zurich at ETH. After more than 30 years of attending International Chemistry Olympiads, Switzerland hosts this exciting event next year for the first time.

Finding Solutions will be the main theme of  the International Chemistry Olympiad 2023.


Being a lecturer myself, I am aware of the power of knowledge and a believer in sharing information and teamwork and to remain curious and passionate in finding solutions to the issues that are affecting our world.

Passion, innovation, creativity, team spirit and most of all enthusiasm for chemistry will bring the world’s best chemistry talents together. But apart from all the hard work at the competition we also will have fun and entertainment.

Most of all, the participation in an IChO influences everyone for a lifetime and can be groundbreaking for a further career.

After long years of online Olympiads due to demanding times, we hope we will meet and greet you all in person in Zurich.

As the President of the IChO 2023 and Rector of ETH Zurich I look forward to welcoming all the young students, mentors, observers and guests who will join us next summer for a wonderful time of exchange and inspiration."

Logo, ETH Zurich, Switzerland, University, Science, Technology
Professor Wendelin J. Stark
Head of Scientific Committee IChO 2023

"Switzerland is one of the most important locations for the brightest minds in the world. As a professor of chemistry and applied biosciences, I am therefore particularly pleased to welcome the most brilliant chemistry talents of the future at ETH Zurich. Among other things, here we foster innovation: we want to attract inventors and find novel impactful solutions to improve our everyday lives.

As a three-time IChO participant, I am particularly proud to host the International Chemistry Olympiad. The IChO is an event that motivates and inspires. Participation in an IChO leaves a long-term mark and leads to completely different top performances in one's later academic and professional career.

As the Head of Scientific Committee, I am looking forward to welcoming you at ETH Zurich and to guiding you through your special days.

I am convinced that the spirit of the International Chemistry Olympics will motivate everyone to deliver top performances. Let's master the competition together!"

Wendelin Stark_epo20_edited.jpg
Professor Kurt Wüthrich
ETH professor of Biophysics and Chemistry Nobel Laureate in 2002

"The first International Chemistry Olympiad was held more than 50 years ago, and in 2023 the IChO will be organised in Switzerland for the first time. Scientific research today is mainly driven by interdisciplinary projects that integrate contributions from talents from different specialised fields. Chemistry often plays a central role in this, as I have experienced in my scientific life. After completing a PhD in inorganic chemistry, I have conducted research in physics, biology and the biomedical sciences over the decades.


In the process, my knowledge of chemistry has decisively promoted communication between the different disciplines. Today I am particularly pleased that ETH Zurich, and thus Switzerland, can make an important contribution to ensuring future generations of researchers working in chemistry and related sciences; IChO 2023 deserves the full support of us all."

If you wish to get more information on the IChO 2023, you can download our OnePager here: 

Logo, ETH Zurich, Switzerland, University, Science, Technology
Logo, ETH Zurich, Department of Chemistry and Applied Biosciences, Chemistry, Biosciences
Logo, Science Olympiad Switzerland, Wissenschafts-Olympiade, Olympiade de la Science, Olimpiadi della Scienza
Logo, Swiss Chemistry Olympiad, Chemie-Olympiade, Olympiade de Chemie, Olimpiadi della Chimica
Swiss Chemical Society, Schweizerisch Chemische Gesellschaft, Association, Chemistry