The Dutch Mathematics Olympiad (`Nederlandse Wiskunde Olympiade' = NWO) is an annual mathematics competition for high school students. The NWO is not only aimed at the ``top-of-the-class'', but at every student who feels challenged by a problem that involves unusual, entertaining, and not-every-school-day mathematics.
The Dutch Mathematics Olympiad has been organized since 1962 and is the oldest Dutch school olympiad. Since 1969, The Netherlands also participates in the International Mathematics Olympiad. In 1979 the NWO School Prize was established.