* (Noord-Brabant) First attested as alfheim in 719. Compound of an unclear first element and heem (“home, settlement”). The first element has been variously interpreted as Middle Dutch alf (“gnome, evil spirit, elf”) and Old Dutch Alf (a personal name).
* (Gelderland and Zuid-Holland) See respectively Alphen aan de Maas and Alphen aan den Rijn.
* (Former municipality) Named after Alphen aan den Rijn.