The International Olympiads, or International Science Olympiads, are a group of worldwide annual competitions in various areas of the formal sciences, natural sciences, and social sciences. The competitions are usually designed for a team of several best pre-college students from each participating country selected through national competitions. The International Linguistics Olympiad, the International Olympiad on Informatics, and the International Olympiad in Artificial Intelligence allow two teams if certain conditions are met. The International Junior Science Olympiad is designed specifically for junior secondary students and also allows two teams from the hosting country.
Early editions of the first Olympiads were limited to the Eastern Bloc, but later they gradually spread to other countries. They are unrelated to the International Olympic Committee.
International Olympiads are not organized by a single governing body. Competitions listed here are those which have been widely discussed as part of this group in reliable and independent sources.
Formal and natural sciences
#Science OlympiadAbbreviationYears2025 host country2026 host countryReferences1 International Mathematical Olympiad IMO since 1959 2 International Physics Olympiad IPhO since 1967 3 International Chemistry Olympiad IChO since 1968 4 International Olympiad in Informatics IOI since 1989 5 International Biology Olympiad IBO since 1990 International Astronomy Olympiad IAO since 1996 6 International Junior Science Olympiad IJSO since 2004 7 International Earth Science Olympiad IESO since 2007 8 International Olympiad on Astronomy and Astrophysics IOAA since 2007 9International Olympiad in Artificial IntelligenceIOAIsince 2024
Social sciences
{|class="wikitable" style="text-align: center;" |- !# !Science Olympiad !Abbreviation !Years !2025 host country !2026 host country !References |- |10|| International Philosophy Olympiad || IPO || since 1993 || ||
|11|| International Geography Olympiad || iGeo || since 1996 || ||
|12|| International Linguistics Olympiad || IOL || since 2003 || ||
|13|| International Economics Olympiad || IEO || since 2018 || ||
See also RoboCup Tuymaada WorldSkills
Notes
References
External links