Indonesia National Science Olympiad

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The OSN (Olimpiade Sains Nasional), previously KSN (Indonesian: Kompetisi Sains Nasional) is a science competition for Indonesian students held by the Indonesian Ministry of Education and Culture. This competition consists of a few competitions for elementary school (SD) students, junior high school (SMP) students, and senior high school (SMA) students.

The competition puts students from the thirty-four provinces of Indonesia, and winners of the competition are further selected to represent Indonesia in their respective subjects' International Science Olympiad.^[1] In addition, Indonesian public universities are required to accept medal-winners of the competition into their undergraduate programmes.^[2]

KSN was initiated in 2002 when Indonesia first became host of the International Physics Olympiad. The first ever national-stage competition was held in Yogyakarta, and in 2003 it was held in Balikpapan with improved rules and procedures.^[3]

In 2020, as the new Minister of Education Nadiem Makarim takes office, a brand new governmental agency was created which was called ‘Pusat Prestasi Nasional’ (National Achievement Center) to hold this olympiad. Due to Indonesia's 2032 Olympic bid, all competitions using ‘Olympiad’ in their names are changed into ‘Competition’. Therefore, this competition is called National Science Competition (Kompetisi Sains Nasional).