An annual international programming olympiad in which secondary school students compete individually, solving a set of informatics problems over two competition days. Each country typically sends a delegation of four contestants and two accompanying adults, headed by a delegation leader. Contestants must be students no older than twenty on July 1 of the competition year. In the U.S., USACO picks the four team members at its summer training camp.
Offered by IOI. Competition for high school students in Worldwide. Format: In-person. Cost: Free. Grades 9–12. Deadline: rolling or not yet announced.
Fields: Computer Science
Info checked October 2026.
No date is posted for the 2026-27 cycle yet. Check the official page for when applications open.
Yes. International Olympiad in Informatics is free to take part in.
High school students in grades 9 to 12. It takes place in person in Worldwide. Age, residency and citizenship rules are on the official page.
More academic competitions for high school students