Catherine Cox (born 24 May 1976 in Whangarei, New Zealand) is an Australian netball player. Cox has played regularly for the Australian national team since her first appearance in 1997 and is a member of the ANZ Championship team West Coast Fever.

Catherine Cox was born in Whangarei, New Zealand but moved with her family to Australia when she was six.

Cox started playing netball at age 11, starting at the Hills District Netball Association in New South Wales. By 1992 she had represented New South Wales at under 17 level. She was first represented her country at Under 21 level in 1994.. She was an Australian Institute of Sport scholarship holder.

She was first selected for the Australian national team squad in November 1996 and made her Australian team debut in 1997 against South Africa, aged 21.

Cox's next Australian appearance was in the 1999 Test Series in Australia against England. After a knee operation at the end of 1999, Catherine co-captained the Perth Orioles for the next two seasons. She was selected ahead of shooters Vicki Wilson and Jenny Borlase in the Australian team in 2000, but did not maintain her place.