Registration is closed and the first round is now complete. This year's contest was a great success with over one-thousand students from around the United States and Canada participating. Results should be posted by the end of February, and the top one-hundred students will be invited to the second round on March 10. Thank you to all of our students, university site coordinators, and high school teachers.

Thank you for your interest in the North American Computational Linguistics Olympiad (NACLO).

This olympiad is a contest in which high-school students solve linguistic puzzles. In solving the problems, students learn about the diversity and consistency of language, while exercising logic skills. No prior knowledge of linguistics or second languages is necessary. Professionals in linguistics, computational linguistics and language technologies use dozens of languages to create engaging problems that represent cutting edge issues in their fields. The competition has attracted top students to study and work in those same fields. It is truly an opportunity for young people to experience a taste of natural-language processing in the 21st century.