Maiden name

Traditionally, a maiden name was the original surname of a bride before taking the name of her husband.

For example, Alice Carter's maiden name was Sangster. (TV: Children of Earth: Day Three)

During his wedding to Amy Pond, Rory Williams corrected the Eleventh Doctor when he refered to him as "Mister Pond", explaining that was "not how it work[ed]." However, he soon conceded when the Doctor insisted it did. (TV: The Big Bang)