Of the ladies we've listed on this blog, there's...
Helena Bonham Carter (Burton) as Elizabeth in Mary Shelley's Frankenstein
Jennifer Beals (Rockwell/Dixon) as Eva in The Bride
Other actresses to play Elizabeth Frankenstein / Elizabeth Lavenza / Elizabeth Levenza include...
Catherine Rabett in Frankenstein Unbound
Madeline Kahn in Young Frankenstein
Valerie Hobson in Bride of Frankenstein
Mae Clarke in Frankenstein 
Mary Fuller in Frankenstein 
Other actresses to play Eva aka Bride of the Frankenstein Monster aka Prima aka Monster's Mate include...
Jane Seymour in Frankenstein: the True Story
Dalila de Lazzaro in Andy Warhol's Flesh for Frankenstein
Susan Denberg in Frankenstein Created Woman
Elsa Lanchester in Bride of Frankenstein