The International Olympiad in Informatics (IOI) is an annual competitive programming competition and one of the International Science Olympiads for secondary school students. The first IOI was held in 1989 in Pravetz, Bulgaria. It is the second largest science olympiad, after the International Mathematical Olympiad, in terms of number of participating countries. Each country sends a team of up to four students, plus one team leader, one deputy leader, and guests.
The International Mathematical Olympiad (IMO) is a mathematical olympiad for pre-university students, and is the oldest of the International Science Olympiads. It is “the most prestigious” mathematical competition in the world. The first IMO was held in Romania in 1959. It has since been held annually, except in 1980. More than 100 countries participate. Each country sends a team of up to six students, plus one team leader, one deputy leader, and observers.
The International Physics Olympiad (IPhO) is an annual physics competition for high school students. It is one of the International Science Olympiads. The first IPhO was held in Warsaw, Poland in 1967.
The International Chemistry Olympiad (IChO) is an annual academic competition for high school students. It is one of the International Science Olympiads. The first IChO was held in Prague, Czechoslovakia, in 1968. The event has been held every year since then, with the exception of 1971. The delegations that attended the first events were mostly countries of the former Eastern bloc and it was not until 1980, the 12th annual International Chemistry Olympiad, that the event was held outside of the bloc in Austria. Up to 4 students for each national team compete around July in both a theoretical and an experimental sections, with about half of the participants being awarded medals.
Parahyangan Catholic University, also referred to by its acronym UNPAR, is one of the oldest and most prestigious private universities in Indonesia, located in Bandung. The main campus is on Ciumbuleuit street, and other campuses are on Merdeka street, Aceh street and Nias street. Before owning a building on Merdeka street, UNPAR used the "Panti Budaya" building for college activities.
The United States Physics Olympiad (USAPhO) is a high school physics competition run by the American Association of Physics Teachers and the American Institute of Physics to select the team to represent the United States at the International Physics Olympiad (IPhO). The team is selected through a series of exams testing their problem solving abilities. The top 20 finalists are invited to a rigorous study camp at the University of Maryland to prepare for the IPhO.
The Indian National Physics Olympiad is the second stage of the five-stage Olympiad programme for Physics in India. It ultimately leads to the selection in the International Physics Olympiad.
This article describes the selection process, by country, for entrance into the International Mathematical Olympiad.
The Ukrainian Physics and Mathematics Lyceum (UPML) is a boarding high school and one of the few science magnet schools in Ukraine. It is located in Kyiv and affiliated with Taras Shevchenko National University of Kyiv.
The International Junior Science Olympiad (IJSO) is an annual science competition for students aged 15 and under. It is one of International Science Olympiads and an international academical competition that covers physics, chemistry and biology at the same time. The first IJSO was held in Jakarta, Indonesia in 2004. Around 70 countries send delegations of three to six students, plus one to three team leaders, and observers.
The North American Computational Linguistics Open competition (NACLO), formerly called the North American Computational Linguistics Olympiad before January 1, 2020, is a computational linguistics competition for high school students in the United States and Canada that has been held since 2007. For the 2021 Open competition, approximately 1300 to 1400 students competed. Since 2008 the contest has consisted of two rounds, the second being administered to the top scorers in the first round. The top-scoring students on the second round qualify for the International Linguistics Olympiad (IOL), one of the international science olympiads.
The Romanian Master of Mathematics (RMM) is an annual competition for students at the pre-university level, held in Bucharest, Romania. The contestants compete individually in Mathematics. For a few years, the contest added exams in Physics, Chemistry, and Computer Science. These exams were then replaced with separate competitions in Physics and Informatics. The participating teams can have up to four students for each section. The contest follows the same structure as IMO and IPhO and is usually held at the end of February.
National Science Talent Contest or NSTC is an extension of the National Physics Talent Contest launched by PIEAS in 1995 on the directive of the then President of Pakistan. The purpose of the NSTC is to inspire the youth of the Nation to opt for careers in science, and mathematics and to prepare young students for participation in International Science Olympiads in Physics, Biology, Chemistry and Mathematics.
The HUS High School for Gifted Students, commonly known as High School for Gifted Students of Science, is a specialized, most-selective public magnet school of VNU University of Science, a member of Vietnam National University, Hanoi system. The school serves as a national educational institution to nurture talented Vietnamese students who excelled at natural sciences. The largest percentage of its graduates attend the most prestigious universities in Vietnam.
The Society of Physicists of Macedonia is a scientific and educational organization established in 1949 in Skopje, Macedonia. It is located at the premises of the Institute of Physics at the Faculty of Natural Sciences and Mathematics at the Ss. Cyril and Methodius University.
Wat Suthiwararam School or, in brief, ST is a state all-boys school in Sathon, Bangkok, Thailand, for Matthayom 1 through 6. It was named by King Vajiravudh and established on July 3, 1911. The School's area holds 5 rai, 2 ngan, 320 square metres.
The Lviv Physics and Mathematics Lyceum is a public boarding high school in Lviv, Ukraine. It is considered to be one of the best educational institutions in the country. In 2012 and 2015, the Lviv Physics and Mathematics Lyceum was ranked first among high schools in Ukraine by Focus magazine. The school is well known for organizing multiple country-wide competitions in mathematics, physics ("Levenia"), programming ("Bober"), and the Ukrainian version of the international Mathematical Kangaroo contest.
The International Physics and Culture Olympiad(IPhCO) is a physics and culture competition for high school students. In June 2016, the IPhCO beta version was held in Curitiba, Brazil at the Federal Institute of Paraná (IFPR). The first IPhCO was held in April 2017.
The Junior Science Olympiad of Canada or JSOC is an examination in science for secondary school students, with one test usually conducted in June and a second test in October. Organized by Jennifer Pitt-Lainsbury, Marisca Vanderkamp, Maria Niño-Soto, and Andrew Moffat in association with the University of Toronto Schools (UTS), JSOC encompasses material of the grade 12 curriculum for the three sciences.
The British Physics Olympiad (BPhO) is a series of ten competitions in the study of physics for students in years 11–13 in the United Kingdom.
Indonesia 
Chinese Taipei 
Singapore 
Thailand 
Vietnam 
Kazakhstan 
China 
Mongolia 
Israel 
India 
Hong Kong 
Russia 
Australia 
Malaysia 
Saudi Arabia 
South Korea