married name
noun [ C usually singular ] uk/ˈmær.id ˌneɪm/ us/ˈmer.id ˌneɪm/
婚后姓氏，夫姓
A woman's married name is the family name she takes after getting married.
She used to be Rachel Elliot - I think her married name is Cartwright. 她过去叫雷切尔‧埃利奥特——我想她的夫姓是卡特赖特。