Stewart, 22, is the female lead of the "Twilight" film franchise and also recently headlined "Snow White and the Huntsman."
Cameron Diaz came in at No. 2 on the Forbes list with $34 million, followed by Sandra Bullock at No. 3 with $25 million, Angelina Jolie at No. 4 with $20 million and Charlize Theron at No. 5 with $18 million.
Rounding out the top tier are Julia Roberts at No. 6 with $16 million, Sarah Jessica Parker at No. 7 with $15 million, Meryl Streep and Kristen Wiig tied at No. 8 with $12 million, and Jennifer Aniston at No. 9 with $11 million.