Bernadett 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, finishing fourth in the 1,500m race in her classification.

[2] Biacsi won the silver medal at the European Championship in the 1,500 metres in 2014.

She followed this with a second silver in the 800m, two years later at the 2016 European Championships in Grosseto.

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