The Australian Computational and Linguistics Olympiad (OzCLO) is a linguistics and computational linguistics competition for high school students in Australia, and has been held annually since 2008. The competition aims to introduce students in Years 9-12 to language puzzles so they can develop problem-solving strategies and learn about the structures and diversity of the world's languages. The competition has grown each year, and now involves around 1500 students participating from schools around the country.