35th International Olympiad in Informatics


Bird's eye view of Szeged with a view on the Cathedral

About IOI

The International Olympiad in Informatics (IOI) is an annual international informatics competition for high school students from various invited countries, accompanied by social and cultural programmes. It is one of the five international science Olympiads and is one of the most prestigious competitive programming event in the world.

The 35th International Olympiad in Informatics (IOI 2023) will be held in Szeged, Hungary from 28th of August to 4th of September, 2023.


28 August – 4 September

See all ›

  • Technikai-tudományos találkozó a trópusokon
    Idén 34. alkalommal kerül megrendezésre a Nemzetközi Informatikai Diákolimpia, melynek házigazdája Indonézia.
  • Meet Szeged city
    Szeged is located in the South-Eastern part of Hungary, in Central Europe, at the confluence of the rivers Tisza and Maros
  • Novotel Szeged
    The Novotel Szeged is situated in the most beautiful part of Szeged, directly on the bank of Tisza.

Szeged is the third largest city of Hungary, the largest city and regional centre of the Southern Great Plain and the county seat of Csongrád-Csanád county. The University of Szeged is one of the most distinguished universities in Hungary.


Szeged is the higher education centre of the Southern Great Plain and has built quite a reputation for itself. Thousands of students study here, many of whom are foreigners. The University of Szeged is according to the number of students the second largest and the 4th oldest university of Hungary being established in 1581. Ranked as the top university of the country on Academic Ranking of World Universities – 2005, and in the top 100 in Europe, it offers several programs on different fields of study.