Depends if you are in Charaidi EY or other.
If you are in Charaidi EY, you may (if the male is Sephardi) have to take on your wife’s last name! 🙂
I am aware of many “mixed” marriages in the Dati Leumi community (and it is very common), as well as the American Communities in EY and Chutz. They seem to work.