Quote Originally Posted by Funanori View Post
but in western countries, the middle name doesn't mean anything, so If a kid had duel nationalities, It seems perfectly logical to me to use the person's patronymic as his middle name.
some Russians may have dual citizenships (or more than 2). In that case they use ФИО (фамилия имя отчество) in the Russian passport, and I guess just name and surname in a foreign passport (because the Russian patronymic doesn't look like a middle name, both functionally and formally, and it's pretty non-standard to invent a middle name for an ethnic Russian). Better think of a female name here as a pattern: ex. Anna Maria Schmidt - middle name usually says nothing of a father and is not like a Russian patronymic.

It's worth mentioning that when a Russian national gets a travelling foreign passport the patronymic is omitted in it, they just use name and surname (in English transliteration).