'helfertk' described a workaround that you could do on your own computer from your own database, using the husband's surname to retrieve women's married names. Of course this will not work if you do not have the husband's data entered as an individual (if you do not know first name or vitals for him).

The inability to generate indexes by women's married surnames is a big flaw in genealogy programs. You cannot generate such a list on the Ancestry site from your tree.

Most search programs associated with trees also will not allow you to generate lists of wives married to X surname unless you also enter a maiden surname and search for both at the same time.

Another workaround is to enter final married name as the woman's surname and her maiden name (and intervening married surnames if any) as a middle name. This requires some manual fixing to link her to her parents' surname, but it does allow searching for a maiden name as if it were a given name. This is not a perfect solution, since such a search will also retrieve other persons having that name as an actual given name.

There may be a gedcom-generating program out there that has solved this problem - a query on the genealogy software message boards may find one. But even such a program will only work that way on your own computer: once you upload a gedcom you cannot make the host program do what your home-base program will do in this respect.

Good hunting,
Jade