Kate Wilson-Smith (born 9 January 1979) is a female badminton player from Australia.
Wilson-Smith competed in badminton at the 2004 Summer Olympics in women's doubles with partner Jane Crabtree. They were defeated by Pernille Harder and Mette Schjoldager of Denmark, 15-2 15-3, in the round of 32. In mixed doubles, Wilson-Smith and partner Travis Denney lost to Björn Siegemund and Nicol Pitro of Germany in the round of 32.
At the 2010 Commonwealth Games, she won a bronze medal in the women's doubles, competing with countrywoman Tang He Tian.