List of mathematics competitions

Mathematics competitions or mathematical olympiads are competitive events where participants complete a math test. These tests may require multiple choice or numeric answers, or a detailed written solution or proof.

International mathematics competitions

Championnat International de Jeux Mathématiques et Logiques — for all ages, mainly for French-speaking countries, but participation is not limited by language.
China Girls Mathematical Olympiad — held annually for teams of girls representing different regions within China and a few other countries.
European Girls' Mathematical Olympiad — since April 2012
Integration Bee — competition in integral calculus held in various institutions of higher learning in the United States and some other countries
International Mathematical Modeling Challenge — team contest for high school students
International Mathematical Olympiad — the oldest international Olympiad, occurring annually since 1959.
International Mathematics Competition for University Students — international competition for undergraduate students.
Mathematical Contest in Modeling — team contest for undergraduates
Mathematical Kangaroo — worldwide competition.
Mental Calculation World Cup — contest for the best mental calculators
Primary Mathematics World Contest — worldwide competition
Rocket City Math League — Competition run by students at Virgil I. Grissom High School with levels ranging from Explorer to Discovery
Romanian Master of Mathematics and Sciences — Olympiad for the selection of the top 20 countries in the last IMO.
Tournament of the Towns — worldwide competition based in Russia.
The Mental Math International Competition — worldwide competition, Grades 1 - 9.

Multinational regional mathematics competitions

Asian Pacific Mathematics Olympiad — Pacific rim
Balkan Mathematical Olympiad — for students from Balkan area
Baltic Way — Baltic sea regions
ICAS-Mathematics
Mediterranean Mathematics Competition. Olympiad for countries in the Mediterranean zone.
math contest — United States and Canada
Nordic Mathematical Contest — the five Nordic countries
North East Asian Mathematics Competition — North-East Asia
Pan African Mathematics Olympiads
South East Asian Mathematics Competition — South-East Asia
William Lowell Putnam Mathematical Competition — United States and Canada

National mathematics olympiads

Australia

Australian Mathematics Competition
Australian Mathematics Olympiad - Invite-only competition for top performing students in Australia. Used to select the individuals who will sit the team selection test for the opportunity to represent Australia at the International Mathematical Olympiad

Bangladesh

Bangladesh Mathematical Olympiad

Belgium

Olympiade Mathématique Belge — competition for French-speaking students in Belgium
Vlaamse Wiskunde Olympiade — competition for Dutch-speaking students in Belgium

Brazil

Olimpíada Brasileira de Matemática — national competition open to all students from sixth grade to university
Olimpíada Brasileira de Matemática das Escolas Públicas — national competition open to public-school students from fourth grade to high school

Canada

Canadian Open Mathematics Challenge — Canada's premier national mathematics competition open to any student with an interest in and grasp of high school math and organised by Canadian Mathematical Society
Canadian Mathematical Olympiad — competition whose top performers represent Canada at the International Mathematical Olympiad
The Centre for Education in Mathematics and Computing based out of the University of Waterloo hosts long-standing national competitions for grade levels 7–12
MathChallengers — for eighth, ninth, and tenth grade students

China

Chinese Mathematical Olympiad

France

Concours général — competition whose mathematics portion is open to twelfth grade students

Hong Kong

Hong Kong Mathematics Olympiad
Hong Kong Mathematical High Achievers Selection Contest — for students from Form 1 to Form 3
Pui Ching Invitational Mathematics Competition
Primary Mathematics World Contest

Hungary

Miklós Schweitzer Competition
Középiskolai Matematikai Lapok — correspondence competition for students from 9th–12th grade
National Secondary School Academic Competition – Mathematics

India

National Mathematics Talent Contests
Indian Olympiad Qualifier in Mathematics
Regional Mathematical Olympiad
Indian National Mathematical Olympiad

Indonesia

National Science Olympiad — includes mathematics along with various science topics

Kenya

Moi National Mathematics Contest — prepared and hosted by Mang'u High School but open to students from all Kenyan high schools

Nigeria

Cowbellpedia — sponsored by Promasidor Nigeria, open to students from eight to eighteen, at public and private schools in Nigeria.

Philippines

Philippine Math Olympiad, the selection event of the Mathematical Society of the Philippines for the Philippine IMO team

Saudi Arabia

KFUPM mathematics olympiad – organized by King Fahd University of Petroleum and Minerals.

Singapore

Singapore Mathematical Olympiad — organized by the Singapore Mathematical Society, the competition is open to all pre-university students in Singapore.
Singapore and Asian Schools Math Olympiad Since 2006.

South Africa

University of Cape Town Mathematics Competition — open to students in grades 8 through 12 in the Western Cape province.

United States

National elementary school competitions (K–5) and higher

Math League
Mathematical Olympiads for Elementary and Middle Schools
Noetic Learning math contest
Pi Math Contest

National middle school competitions (grades 6–8) and lower/higher

American Mathematics Contest 8, formerly the American Junior High School Mathematics Examination
Math League
MATHCOUNTS
Mathematical Olympiads for Elementary and Middle Schools
Noetic Learning math contest
Pi Math Contest
Rocket City Math League
United States of America Mathematical Talent Search

National high school competitions (grade 9–12) and lower

National college competitions

Spain

Liga Matemática, mathematics competition organized by the National Association of Mathematics Students

Vietnam

Kì thi Học sinh giỏi Quốc gia môn Toán — hosted annually by Vietnamese Ministry of Education and Training for high-schoolers around the nation. Consists of 2 rounds, the best-scorers of Round 1 will proceed to Round 2 in order to qualify for the country's various math Olympiads teams.