Upcoming Contest

Bucharest 2026

Bucharest, Romania has been selected to host the 23rd International Linguistics Olympiad from July 26th to August 2nd, 2026.

Important Dates

Website Launch

Launched in January 2026: https://iol2026.ioling.org/

Requesting new working language*

Before Jan 31, 2026

A new working language means a language that was not present in the previous IOL. Please, note that countries can ask for any language. Asking for a particular language (e.g. English) does NOT give an advantage during the contest – all language versions are equal.

The list of the IOL 2025 working languages can be seen on the IOL 2025 working languages page. Please, make sure that you have read through the Working language(s) selection page carefully before requesting a new language.

Early Bird registration

By March 15, 2026

Payment for the teams with Early Bird registration

By March 15, 2026

Standard registration

By April 30, 2026

Future host venues

List of future IOL host venues (provisional)
Year	Venue	Contact	Website
2026	Bucharest, Romania	[email protected]	Link
2027	Bangkok, Thailand	TBA	N/A