Double-barrelled Name

In English speaking and some other Western countries, a double-barrelled name is a family name with two parts, which may or may not be joined with a hyphen and is also known as a hyphenated name. An example of a hyphenated double-barrelled surname is Hoyle-Johnson; an example of an unhyphenated double-barrelled surname is Vaughan Williams.

In many patrilineal cultures one's surname or family name often has just one part, a single patrilineal surname such as Hoyle, Johnson, Vaughan or Williams. Single surnames may also be matrilineal surnames, or more simply matrinames.

Thus a double surname (double-barrelled name) may combine two patrilineal surnames, or two matrinames, or a patrilineal surname and a matriname. The latter combination was suggested in the book The Seven Daughters of Eve and is further described in the article matriname.

The term double-barrelled surname is an analogy with double-barrelled shotgun.