Top Olympiad exams in the world

The Olympiad exams are highly sought-after international competitions that cover a wide range of subjects and are organized by various institutions. Students and countries from around the world are attracted to participate in these prestigious competitions. Below, you will find a list of some of the top Olympiad exams preferred by students and countries (List of best Olympiad exams in the world)-

Summer Olympiad Exams by International School Connect Olympiad 2025

International Mathematical Olympiad (IMO):  

IMO – The International Mathematical Olympiad is the most renowned and prestigious mathematics competition in the world. Participating countries do rigorous training and selection within their countries to represent this exam in the global platform.

Official website: https://www.imo-official.org/

Asia Pacific Mathematics Olympiad (APMO):

This is a prestigious mathematics competition for countries in the Asia-Pacific region. Students from various nations participate, and a central committee selects 5 questions to be solved by students in 4 hours.

Official website: https://www.apmo-official.org/

European Girls’ Mathematical Olympiad (EGMO):

This is a mathematics competition specially for female students from Europe.

Official website: https://www.egmo.org/

Balkan Mathematical Olympiad (BMO):

This Mathematics Olympiad is specially designed for students from Balkan countries and Involves teams from Balkan region countries competing in mathematics.

Official website: https://bmo2024.org/

SCO International Math Olympiad:

SCO International Math Olympiad is the largest online Olympiad exam for students from classes 1 to 12. It is the first Olympiad exam to feature skill-based assessment, serving as the initial step towards participating in other international Olympiads.

Official website: https://www.schoolconnectonline.com/exam/imo   

SCO International Mental Ability Olympiad:

This is the biggest Mental Maths Olympiad exam for the students of classes 1 to 10, SCO Olympiad registered students get free access to practice materials.

Official website: https://www.schoolconnectonline.com/exam/mental-ability

International Physics Olympiad (IPhO):

This is one of the most prestigious Olympiad exams for students to test their knowledge and skill in solving complicated physics problems.

Official website: https://ipho-unofficial.org/

International Chemistry Olympiad (IChO):

This is the Olympiad exam with a focus on examining student’s advanced chemistry-based enquiries and their problem-solving abilities.

Official website: https://www.ichosc.org/

International Biology Olympiad (IBO):

This is the Olympiad exam that covers advanced biological sciences, including theoretical knowledge and practical tasks for students. The exam consistently challenges students’ capability to solve intricate problems.

Official website: https://www.ibo-info.org/en/

International Earth Science Olympiad (IESO):

The IESO, is a renowned competition for students to examine students’ understanding of social sciences like geology, meteorology, and environmental science.

Official website: official website page

International Astronomy and Astrophysics Olympiad (IAAO):

This Olympiad exam is officially designed to focus on astronomy and astrophysics subjects along with their observational and theoretical aspects.

Official website: https://www.ioaastrophysics.org/

SCO International Science Olympiad (SCO ISO):

This is the leading online Olympiad exam for individual students from classes 1 to 12, students from across the world participate in this Olympiad exam.

Official website : https://www.schoolconnectonline.com/exam/iso

International Olympiad in Informatics (IOI) :

This is the renowned Olympiad exam in the field of Informatics. Students from all over the world participate in this competition, which tests their programming skills and algorithmic problem-solving abilities.

Official website: https://ioinformatics.org/

International Collegiate Programming Contest (ICPC):

This is a team-based coding or computer programming competition for university students.

Official website: https://icpc.global/

SCO International AI and Coding Olympiad:

This is online Olympiad exam conducted globally, objective to challenge students in the field of Coding language and Artificial intelligence.

Note: Students registering for the SCO International Olympiad exam get free access to online practice materials for this exam.

Official website: https://www.schoolconnectonline.com/exam/artificial-intelligence  and https://www.schoolconnectonline.com/exam/coding

International Linguistics Olympiad (IOL):

The (IOL) Olympiad exam objective is to challenge participants with language puzzles and linguistic problems.

Official Website: https://ioling.org/index.html

International Economics Olympiad (IEO):

This is one of the most academic-oriented Olympiad exam which examines students’ understanding of economic principles and their problem-solving abilities to the expert level and beyond.

Official Website: https://ecolymp.org/

SCO International English Olympiad (IEO):

This is a worldwide online Olympiad competition for individual students of English Language, students from Classes 1 to 12 participate in this competition.

Official website: https://www.schoolconnectonline.com/exam/ieo

SCO International Social Science Olympiad (ISSO):

This is the Olympiad Exam competition in the field of social studies and students participating in this exam are checked for their knowledge and understanding in the fields of Civis, Economics, History and geography.

Official website: https://www.schoolconnectonline.com/exam/isso

International Philosophy Olympiad (IPO):

This Olympiad exam Involves philosophical essays and more determined problem-solving tasks.

Official website: official website page

International Geography Olympiad (iGeo):

This exam is specifically designed to assess students’ understanding of geography through fieldwork.

Official Website : official website page

The following is a list of prestigious international Olympiad exams for students, organized by leading educational bodies. These exams provide students with the opportunity to compete at a national level and demonstrate their abilities on an international platform by tackling challenging problems in various subjects. Participants face a series of tests and tasks that continuously push their intellectual capacity to the limit. Excelling in these Olympiad exams brings honor to the nation, schools, and families.

List of Olympiad exams in the worlds
SN	Exam Name	Subject
1	International Mathematical Olympiad (IMO)	Mathematics
2	Asia Pacific Mathematics Olympiad (APMO)	Mathematics
3	European Girls’ Mathematical Olympiad (EGMO)	Mathematics
4	Balkan Mathematical Olympiad (BMO)	Mathematics
5	SCO International Math Olympiad	Mathematics
6	SCO International Mental Ability Olympiad	Logical Reasoning
7	International Physics Olympiad (IPhO)	Science
8	International Chemistry Olympiad (IChO)	Science
9	International Biology Olympiad (IBO)	Science
10	International Earth Science Olympiad (IESO)	Science
11	International Astronomy and Astrophysics Olympiad (IAAO)	Science
12	SCO International Science Olympiad	Science
13	International Olympiad in Informatics (IOI)	Informatics
14	International Collegiate Programming Contest (ICPC)	Programming Language
15	SCO International AI and Coding Olympiad	Coding and AI
16	International Linguistics Olympiad (IOL)	Language Puzzles
17	International Economics Olympiad (IEO)	Economics
18	SCO International English Olympiad (IEO)	English
19	SCO International Social Science Olympiad (ISSO)	Social Studies
20	International Philosophy Olympiad (IPO)	Philosophical Essay
21	International Geography Olympiad (iGeo):	Geography

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