In the United States and Canada, names usually contain only a middle name, and they are often abbreviated ("middle name abbreviation") when writing (especially when signing). For example, james roberts Smith was written as James R Smith, or simply omitted as james smith.

In other English-speaking countries, people usually have more than one name, although their first name is more familiar. In other countries, the word "middle name" only refers to those names at the bottom of the position, but they are not surnames (for example, a person can use his mother's maiden name as a middle name).

Extended data

Because of the more and more extensive application of computer databases, the use of middle names is somewhat troublesome. When storing personal information in computer databases, only one middle name or even the first letter of the middle name is allowed, which deprives people who use multiple middle names of the possibility of using their full names in such databases.

Especially in government records or legal databases, this phenomenon is criticized as "discrimination against people with multiple middle names for cultural or religious reasons". Of course, this phenomenon is basically confined to English-speaking countries, because other countries have different naming methods, so we should develop a database that can adapt to multiple middle names.

Baidu Encyclopedia-Middle Name