Natalya Diehm (born 23 September 1997) is an Australian cyclist who competes in Freestyle BMX.

Diehm was born in Gladstone, Queensland, and grew up in nearby Boyne Island.

[3] Diehm finished 6th at the 2019 UCI Urban Cycling World Championships at Australia's first appearance in the event.

[5] After recovering from her fourth knee reconstruction in late 2018, Diehm was discouraged from pursuing her Olympic ambitions and almost left the sport.

[8][9] Despite suffering a ruptured ACL two weeks prior, Diehm reached the women's freestyle final, finishing fifth.