AACR2
| Language | Prefix | Enter under |
| Afrikaans | De, Du, Van der, Von | prefix |
| Czech | z | part following prefix |
| Danish | De | prefix |
| all other prefixes | part following prefix | |
| Dutch | ver | prefix |
| De, Den, op de, ter, Van, Van der, ten, Van 't | part following prefix | |
| When a Dutch person's surname is not Dutch, follow the rules of the language for that name | ||
| LC RI 22.5D1: Even when a Dutch person's first work is in English, treat the name as Dutch. | ||
| English | D', De, De la, Du, Le, Van, Von | prefix |
| Flemish | See Dutch | |
| French | prefix consisting of a contraction of article and preposition: La, Le, Du, Des | prefix |
| prefix consisting of a preposition alone: D', De | part following preposition | |
| German | prefix consisting of a contraction of article and preposition: Am, Aus'm, Vom, Zum, Zur; including Dutch names: De, Ten | Prefix |
| Von, Von der, Zu | part following prefix | |
| When a German person's name is neither German nor Dutch, follow the rules of the language of that name | ||
| Italian | Modern names: A, D', Da, De, Del, Della, Di, Li, Lo | prefix |
| Medieval and early modern names: follow the form found in reference sources, and when the prefix is sometimes omitted in reference sources, enter under the part following the prefix | ||
| Norwegian | Enter under the part following the prefix if it is of Scandinavian, German, or Dutch origin | |
| Portuguese | Da, Dos | part following prefix |
| 22.5C8: Treat Filho, Junior, Neto, Netto, Sobrinho following a surname as part of it | ||
| Romanian | De | prefix |
| A | part following prefix | |
| Slovak | z | part following prefix |
| Spanish | prefix consists of an article only: Las | prefix |
| all other prefixes: De, De las, Del | part following prefix | |
| Swedish | Enter under the part following the prefix if it is of Scandinavian, German, or Dutch origin | |
| af, av | part following prefix | |
| other languages |
prefix is neither an article, preposition, or combination | prefix |