Dutch surnames are kind of weird, in that a lot of them start with small words such as de/'t/het ("the"), van ("of"), van 't, van der ("of the"), etc. This makes them a pain to enter in most address books, since you really want to ignore that part of the name when sorting, but not when displaying. This means you get "Piet Vries" instead of "Piet de Vries".
While Address Book has the "middle name" field, which can be abused for this, it really isn't meant for it, causing some applications (iCal, for example) to ignore the field, showing an incomplete name.
iTunes solves this problem for artist and album names, giving you a "sort album" or "sort artist" field to enter a string to sort on (so "The Beatles" are sorted as if they're called "Beatles"). I haven't been able to find a similar field in Address book.
So, what is the correct way to make Address Book deal with this?
[locale]and[collation]tags, but neither really fits. The question can apply to any location (Dutch-surnamed people can live anywhere in the world + Dutch people aren't the only ones with multi-word surnames). And it's not clear that @Sietse is collating anything—or at least nothing that[sort] doesn't describe equally well. My removals aren't anything against you; it's just that I don't think those tag additions were helpful. – Dori Dec 14 '10 at 2:10