The Australian Computational and Linguistics Olympiad (OzCLO) is a volunteer-run contest about language for secondary school students (years 7-12). The contest challenges students to develop their own strategies in teams of four to solve problems about fascinating real languages.
OzCLO 2026 is now complete, thank you everyone!
Registration for 2027 will open early in the new year.
Congratulations to our IOL 2025 teams, who competed in Taipei in July 2025!
Team Naarm: Georgios Pirpiris, Nicholas Wang, Hugo Chang, Benjamin Jin Yu Chen (Melbourne Grammar School)
Team Warrang: Luke Kelman, William Chung, David Lu, Felix Eibl (Sydney Grammar School)
Particular congratulations to Nicholas Wang (55.5) on his honourable mention, and Hugo Chang on his silver medal (76.5)!
This year IOL will be held in Bucharest, Romania from 26 July to 2 August.
The two winning teams from OzCLO round 2 will be representing Australia:
Team 613 from Pymble Ladies’ College in NSW (Team Warrang)
Team 178 from Melbourne High School (Team Naarm)
Registration for 2025 is closed. Information for 2026 will be available early in the new year.
Find training material and past problems here.
Archive of problems used in previous competitions.
How OzCLO works, and who we are.
ABN 53752617881
More information for OzCLO 2027 will be available in the new year
