My son's second middle name is my maiden name.

I consider that a family name.
Our next child, if it's a boy, will have the middle name Iain and if it's a girl she'll have the middle name Siobhan. Iain is the Scottish form of John, Siobhan is the Irish form of Joan, which is the feminine form of John. John is a family name on my husband's side.
So yeah, I like to use family names.