The following countries have offered to host the International Olympiad on Astronomy and Astrophysics in future years. The list of hosts remains open beyond 2023.
IOAA:
18th IOAA (2025) Mumbai, India – 11-21 August 2025
IOAA-Jr.
3rd IOAA-Jr (2024) Kathmandu, Nepal – 3-10 October 2024
Announcement:
Following a vote by the international board, it has been decided that the hosting of IOAA in Belarus (originally scheduled for 2024) may be postponed till the geopolitical situation in the region improves.
We sincerely wish that the present war will be over soon and a lasting peace is established in the region.