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What is NACLO?
How do I register?
Important Dates


Unfortunately, this year UMD will not be able to be a host site for the 2021 North American Computational Linguistics Open competition (NACLO). However, there is an At-Home option available this year. So, you still can register and participate! And hope to see you next year in-person again.

What is NACLO?
NACLO is a contest for students in grades 6-12 (although primarily targeted at grades 9-12) in which contestants solve interesting and challenging puzzles in linguistics and computational linguistics. These puzzles require no previous knowledge of linguistics or computing and can be solved by analytic reasoning alone. In solving the problems, students learn about the diversity and consistency of language, while exercising logic skills.

NACLO consists of two rounds: the Open Round (January 28, 2021), open to all interested high school and middle school students, and the Invitational Round (March 11, 2021), for students who have advanced from the first round. The top students in the Invitational Round are eligible to represent the US in the International Linguistics Olympiad (in Ventspils, Latvia on July 19 - 23, 2021), one of thirteen international high school science Olympiads.

The NACLO website has comprehensive information on the competition, including sample problems from past Olympiads. We strongly encourage all participants to complete several sample problems and/or attend information sessions listed below.

How do I register? 
Thanks to the generous support of the sponsors, participation in NACLO is free. NACLO registration for 2021 is now open on the NACLO website. The registration deadline is January 15. The students already registered at UMD will be reassigned to the At-Home participation and contacted by NACLO with further instructions. If you are still willing to register, please choose the At-Home option. You will have direct live access to the jury on the day of the contest.

How can I learn more? 

We also had to cancel our virtual training sessions because of lack of interest in the first session.

For questions about NACLO at the University of Maryland, contact Polina Pleshak (ppleshak@umd.edu).

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