Table of contents |

2 Regional Mathematics Competitions 3 National Mathematics Competitions |

- IMO (International Mathematics Olympiad) -- worldwide

- SEAMO (SEAMEO Mathematics Olympiad) -- South-East Asia
- APMO (Asian-Pacific Mathematics Olympiad) -- Pacific rim
- OIM (Olimpíadas Iberoamericanas de Matemática) -- Spain, Portugal and Latin America
- Olimpiada Matematica de Centroamérica y del Caribe -- Central America and the Caribbean
- William Lowell Putnam Mathematical Competition -- USA and Canada
- MathCounts (for younger students)

- AMC (Australian Mathematics Competition)

- OMB (Olympiade Mathématique Belge)
- VWO (Vlaamse Wiskunde Olympiade)

- OBM (Olimpíada Brasileira de Matemática)

- CMO (Canadian Mathematics Olympiad)
- Descartes (13th grade students)
- Euclid (12th grade students)
- Fermat (11th grade students)
- Cayley (10th grade students)
- Pascal (9th grade students)
- Gauss (7th and 8th grade students)

- Georg Mohr (Contest for Danish highschool students, see http://www.imf.au.dk/georg-mohr/hvemvargm.html for more details [note: in Danish])

- DeMO (Deutsche Mathematik-Olympiade)

- NWO (Nederlandse Wiskunde Olympiade)

- Niels Henrik Abels matematikk-konkurranse (Norwegian Mathematical Olympiad, website available both in Norwegian and English at " class="external">http://www.math.uio.no/abelkonkurransen/)

- Philippine Mathematics Olympiad

- Skolornas matematiktävling (see http://www.math.uu.se/~dag/skolornas.html or http://www.math.chalmers.se/~sam/problemet/bok.html for older problems)
- Högstadiets matematiktävling (http://www.matematiktavling.org/hmt/, open for students in grades 7 through 9)

The United States is home to many regional and national math contests for high school students. The largest and most prestigious are those run by the American Mathematics Competitions (AMC), which include the following:

- American Mathematics Competition 8 (formerly AJHSME - American Junior High School Mathematics Examination)
- AMC 10/12 (formerly AHSME - American High School Mathematics Examination)
- AIME (American Invitational Mathematics Examination)
- USAMO (United States of America Mathematics Olympiad)

Other American math contests include USAMTS (United States of America Mathematical Talent Search), the team-based competition ARML (American Regions Math League National Competition), the team-based competition that spawned ARML, NYSML (New York State Mathematics League) and The Mandelbrot Competition for high schoolers, and the Putnam Competition for undergraduates (the Putnam is also open to Canadian undergraduates).