Natalie Marie Grinham (born 16 March 1978 in Toowoomba, Queensland, Australia) is an Australian former professional squash player.

[2] Natalie's older sister Rachael Grinham is also one of the world's former leading professional squash players.

1 Nicol David in the semi-finals, before going on to beat her sister Rachael in the women's singles final 2–9, 9–6, 9–1, 9–6 to claim the gold medal.

Natalie and Rachael had previously won a women's doubles bronze medal at the 2002 Commonwealth Games.

Under the World Squash Federation's current rules, players must wait for three years before becoming eligible to represent a different country.

She however made a quick comeback to the game winning the Women's Atwater Cup in Canada, upsetting third seed Joelle King in the final of the WISPA World Tour Silver 20 event in March 2011, less than a year after the birth of her son.