The North American Computational Linguistics Olympiad is coming to University at Buffalo, the State University of New York on January 25, 2024! 

What is NACLO?

The North American Computational Linguistics Olympiad is a contest for U.S. and Canadian high-school students, who test their minds each year against fun and tricky puzzles in language, linguistics, and language technologies. No prior knowledge of linguistics, languages, technology, or computers is required: even the hardest puzzles require only your logical ability, patient work, and willingness to think around corners. For more about NACLO and to try some sample puzzles, visit the NACLO website at

What's the schedule?

Open Round, January 25, 2024:

  • Check-in: 9:30 to 9:40 A.M.
  • Students take their seats: 9:40 to 9:45 A.M.
  • Welcome and review of rules: 9:45 to 10:00 A.M.
  • Exam period: 10:00 A.M to 1:00 P.M.

Invitational Round, March 14, 2024

The NACLO Open Round exam will take place in Davis Hall 101 at University at Buffalo (UB). (See these directions for information about getting to campus and parking.)

When you enter Davis Hall, look for the Agrusa Auditorium or room 101. Check-in will take place inside the classroom.

Who do I contact for more information?

 NACLO Coordinators:

Prof. Cassandra Jacobs, Department of Linguistics, University at Buffalo

Prof. Jeff Good, Department of Linguistics, University at Buffalo

Leslie Ying, University at Buffalo

Who's eligible to participate?

Any high school or middle school student is invited to participate in the Open Round.

The top-performing students in the Open Round will be invited to participate in the Invitational Round on March 16th.

What happens in cases of school delays and closings?

Because NACLO is a nationwide exam, we must adhere to the test schedule and test with the Eastern time zone on January 25th. Therefore, in the event of any school closings or delays, NACLO will proceed as scheduled. Unfortunately, we will not be able to offer a make-up day for those students who were unable to make it to the site in time for the exam.


NACLO is made possible by generous support from both institutions and individuals. Even small donations make a big difference, so take a look at our donation page to see how you can contribute.