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North American Computational Linguistics Olympiad at the University of Florida

The North American Computational Linguistics Olympiad (NACLO) is a national contest for high school (and middle schools) students. Contestants compete to solve creative and challenging linguistics problems drawn from a variety of languages. Though no prior knowledge of particular languages or of linguistics is required, strong logic, reasoning, and problem solving skills are useful.

The first round of NACLO competition is held locally at various locations in the U.S. and Canada. Students who score well advance to a second invitational round of competition in March. Winners of NACLO are eligible to compete on the US National Team in the International Linguistics Olympiad, one of thirteen international Olympiads for secondary school students. The 2021 international competition will take place July 19-23, 2021 in Ventspils, Latvia.


For more information, see the national NACLO site and the International Linguistics Olympiad site.


Registration is available here. Participation is free. Registration for NACLO 2021 opens in Fall 2021 and ends one week before the competition date. Onsite registration is available.

The NACLO organizing committee is mindful of the health and safety of its participants. We encourage students to register, keeping in mind that the contingency plan is for students to participate from home if participation at UF is impractical due to restrictions related to COVID-19. Please note that this at-home participation option will require internet access for the duration of the competition. If you are reassigned to the at-home participation option, you will be contacted by NACLO with further instructions.


Download rules and other information from  NACLO 2021.


The open round of competition takes place Thursday, January 28, 2021. The invitational round for top performers is March 11, 2021.

The open round competition will take place in Pugh Hall, room 210. The venue will be open starting at 9:30am. The competition starts punctually at 10am and lasts three hours. COVID-related policies for campus visitors can be found here.


Practice problems and solutions can be found here and here.


For more information contact

Eric Potsdam
Professor, Linguistics