NACLO 2023

The North American Computational Linguistics Open competition is a contest in which high-school students solve linguistic problems. In solving these 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.



  • Site registration deadline: TBA.
  • Student registration deadline: TBA
  • Please fill out the form here and select Emory University for the site.

Open Round

  • This round is open to all interested middle school and high school students; its purpose is to identify strong contestants who will advance to the Invitational Round.
  • Date: January 26, 2023.
  • Location: Emory University.
  • Schedule: TBA.

Invitation Round

  • The problems in this round are harder than the Open Round problems. The purpose is to select national winners, who will be eligible to participate in the international competition, The International Linguistics Olympiad (ILO).
  • Date: March 16, 2023.
  • Location: Emory University.
  • Schedule: TBA.