I know she has been mentioned already, But I'm mentioning her again anyway...Cate Blanchett

Also, Sigourney Weaver:

Ok, I don't know if anyone has added her yet. But in my opinion one woman who should be mentioned is Maxine McKew.

Also, Julia Gillard - she is our first female Vice Prime Minister:

And Jessie Street:

Pearl Gibbs:

and Faith Bandler

these three were the main influences in getting the 1967 referendum happening that stopped Aborigines from being segregated from Caucasian society and enabled them to be counted in the census.
Then there is my sister Helen who I live with:

She has been the only person I knew I could trust when I needed to confide in someone. She is by best friend, my older sister, someone I look up to, and someone I can go to for advice, and someone I worship in the only way a little sister can. She is just gorgeous.
Also, my Great Grandmother Olive Lenore Vance (I share the same middle name and I was born exactly 100 years and one day after her):

She was a teacher at Hornsby Girls High. And she was a greatly loved teacher.
And Jodie Foster:

Sincerely, Kat.