The Japanese Junior Mathematical Olympiad is an annual Mathematics Competition held in Japan for students in Middle School and below.

The Japanese Mathematical Olympiad is an annual Mathematics Competition held in Japan for High School students. The top 6 finishers are chosen to represent Japan at the International Mathematical Olympiad (see below).

The International Mathematical Olympiad is the World Championship Mathematics Competition for High School students and is held annually in a different country. (IMO, 2021)