Kate Hergeaves (born 21 March 1970) is a former professional tennis player from Australia.

She competed during her tennis career under her maiden name Kate McDonald.

A right-handed player from Albury, McDonald was the girls' doubles runner-up partnering Rennae Stubbs at the 1988 Australian Open.

[1] She was most successful in the doubles format, with a top ranking of 103 in the world.

Now known as Kate Hergeaves, she has remained involved in tennis as a coach.