Ilona Biacsi (born 29 December 1985) is a Hungarian Paralympic athlete competing mainly in category T20 middle-distance events.

[1] Biacsi competed at the 2012 Summer Paralympics in London, winning a bronze medal in the women's 1,500m race in her classification.

[2] She also won the European Championship title in the 1,500 metres in 2014 in Swansea.

Biacsi's twin sister, Bernadett is also a T20 middle-distance athlete and the two were chosen to be joint flag bearers for Hungary at the opening ceremony of the 2012 Summer Paralympics.

[3]