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.
Rocket City Math League (RCML) — Competition run by students at Virgil I. Grissom High School with levels ranging from Explorer (Pre-Algebra) to Discovery (Comprehensive)
Cowbellpedia. This contest is sponsored by Promasidor Nigeria. It is open to students from eight to eighteen, at public and private schools in Nigeria.
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Moscow Mathematical Olympiad (Московская математическая олимпиада [ru]) – founded in 1935 making it a precursor of the International Mathematical Olympiad
Singapore Mathematical Olympiad (SMO) — organized by the Singapore Mathematical Society, the competition is open to all pre-university students in Singapore.