India topped the International Physics Olympiad (IPhO) 2026 with all five students winning gold medals. Iranian students also demonstrated exceptional performance at the event, securing both gold and silver medals.

Vietnam's national team secured four gold and one silver medal at the 56th International Physics Olympiad 2026, marking the country's strongest performance to date.

Romanian students achieved significant success at the International Physics Olympiad 2026, securing two gold medals and three silver medals. This performance highlights their excellence in the field of physics.