Dariya Derkach (; born 27 March 1993) is a Ukrainian-Italian triple jumper. She competed at the 2020 and 2024 Summer Olympics in Triple jump.
She was born in Ukraine but has been an Italian citizen since 27 May 2013. She has lived in the town of Pagani, in the Province of Salerno, in Italy with her parents since 2002. Her father, Serhiy (a former decathlete), is her coach. She trains in Formia where she has lived since the end of 2014. Her mother Oksana Derkach was a triple jumper.
Her best results in triple jump is 13.56 m, the 4th best European under-23 jump in 2011, and 6.55 m in long jump, the 2nd best European under-23 jump in 2011. She has participated four times in the European championships (two outdoor and two indoor), one Olympic Games and one World Championships, on six of these seven occasions without being able to pass the qualifying round for the final.
Dariya Derkach has won 13 times the individual senior national championship and 7 at junior level. She won her first senior national championship in 2014.