He had disgraced the family name.

他玷污了家族的名声。

I don't want to bring shame on the family name.

我不想给家庭的声誉带来耻辱。

Shall I write your given or family name first?

我应该先写您的名字还是姓氏呢？

I know your first name, but I don't know your family name.

我知道你的名字，但不知道你的姓氏。

Do you know his family name?

您知道他姓什么吗？