Due to COVID-19, IOI 2021 was hosted by Singapore online. Visit the official website to learn more.
Just finished IOI 2021 was held online
Here is a list of the countries and regions which have participated in the last three International Olympiads in Informatics.
It is intended that each country or region have a website or e-mail (or both) for contact purposes.
Trinidad and Tobago
United Arab Emirates
According to S2.1 of IOI Regulations: "For the IOI, a Country is a state that has an officially recognised relationship with the United Nations, UNESCO, or which has already taken part in one or more past IOIs".