Olympiade Mathématique Belge - competition for French-speaking students in Belgium.

Bangladesh Mathematical Olympiad (Jatio Gonit Utshob).

Österreichische Mathematik-Olympiade (Austrian Mathematical Olympiad).

National mathematics olympiads Argentina

William Lowell Putnam Mathematical Competition - United States and Canada.South Eastern European Mathematical Olympiad for First and Second Year University Students with International Participation (SEEMOUS) - competition for the Balkan region however, participation is international.South East Asian Mathematics Competition (SEAMC) - South-East Asia.Open Mathematical Olympiad of the Belarusian-Russian University - International mathematical contest for students of higher educational institutions.Portuguese Language Countries Community Mathematical Olympiad - Portuguese: Olimpíada de Matemática da Comunidade dos Países de Língua Portuguesa (OMCPLP).Pan African Mathematics Olympiads (PAMO).North East Asian Mathematics Competition (NEAMC) - North-East Asia.Nordic Mathematical Contest (NMC) - the five Nordic countries.

Middle European Mathematical Olympiad (MEMO) - Until 2007 it was the Austrian Polish Mathematical Competition (APMC).Olympiad for countries in the Mediterranean zone. Mediterranean Mathematics Competition.Mathematical Danube Competition (also known as Donova Mathematical Olympiad).Mathematical Náboj - competition designed for teams of five high school students.ICAS-Mathematics (formerly Australasian Schools Mathematics Assessment).International Olympiad Tuymaada - multidisciplinary competition for students from Romania, Kazakhstan, Moldova, Tartastan, Saint Petersburg, Irkutsk, Vladivostok, Novokuznetsk, Perm and other Russian cities.International Zhautykov Olympiad (IZhO) - competition has Mathematics, Physics and Computer Science exams.Hungary-Israel Mathematical Competition.European Girls' Mathematical Olympiad (EGMO) - since April 2012.In 2001 Polish joined and was renamed to Czech-Polish-Slovak Match. Czech-Polish-Slovak Match - Started in 1995 as Czech and Slovak Match.Benelux Mathematical Olympiad (BxMO) - competition dedicated to high school students from Belgium, Luxembourg and the Netherlands.Balkan Mathematical Olympiad - for students from Balkan area.Asian Pacific Mathematics Olympiad (APMO) - Pacific rim.World Mathematics Team Championship (WMTC) - team-oriented international math competition.Vojtěch Jarník International Mathematical Competition (VJIMC) - international competition for undergraduate students.International Mathematics Competition (IMC) Key Stage II- Elementary Key Stage III Secondary contest by Invitation.Tournament of the Towns - worldwide competition.Romanian Master of Mathematics and Sciences - Olympiad for the selection of the top 20 countries in the last IMO.Grissom High School with levels ranging from Explorer (Pre-Algebra) to Discovery (Comprehensive) Rocket City Math League (RCML) - Competition run by students at Virgil I.Purple Comet ! Math Meet - online, international, team, mathematics competition designed for middle and high school students conducted annually since 2003.Primary Mathematics World Contest (PMWC) - worldwide competition.Mental Calculation World Cup - contest for the best mental calculators.Mathematical Kangaroo - worldwide competition.Mathematical Contest in Modeling (MCM) - team contest for undergraduates.Students present their results in a kind of research debate International Tournament of Young Mathematicians (ITYM) team competition for high school students with problems suggested by contemporary mathematician.International Mathematics Competition for University Students (IMC) - international competition for undergraduate students.International Mathematical Olympiad (IMO) - the oldest international Olympiad, occurring annually since 1959.International Mathematical Modeling Challenge - team contest for high school students.Interdisciplinary Contest in Modeling (ICM) - team contest for undergraduates.Integration Bee - competition in integral calculus held in various institutions of higher learning in the United States and some other countries.China Girls Mathematical Olympiad (CGMO) - olympiad held annually in different cities in China for teams of girls representing regions within China and a number of other countries as well.Championnat International de Jeux Mathématiques et Logiques - for all ages, mainly for French-speaking countries, but participation is not limited by language.3.39.3 National high school competitions (grade 9–12) and lower.3.39.2 National middle school competitions (grades 6–8) and lower/higher.3.39.1 National elementary school competitions (K–5) and higher.1 International mathematics competitions.

Language proof and logic world 3.15