North Sea and forest traditions
Old Norse sources do not have a direct equivalent to the classical Greek nymph. The northern figures gathered here are wave-maidens, forest beings, and nature spirits whose lives are bound to water, weather, and hidden land.
Palette
Nymph-adjacent spirits: wave daughters, forest keepers, and the living boundary between place and presence.
Bylgja is one of the wave-maidens, daughters of Aegir and Ran, whose name is commonly understood as "billow." She is less a character with a surviving plot than a named force of the sea — the moment water lifts, crests, and threatens to break.
Kolga is another of Aegir and Ran's wave-maidens. Her name is associated with coldness — the chill that rides a wave in northern latitudes — making her a compact image of the sea's physical bite.
The Huldra belongs to Scandinavian folklore rather than ancient classical nymph taxonomy. She is a hidden woman of the forest — alluring, dangerous, and bound to wild land in ways that outlast any single telling.
Ran is the wife of Aegir and the dread mistress of the sea who drags the drowned down to her hall with an insatiable net. She is the mother of the wave-maidens and the collector of everything the ocean refuses to return.
Skadi is a jotun who chose her husband by his feet, claimed mountains as her dowry, and became the winter huntress of the gods — a giantess who walked into Asgard and demanded justice on her own terms.
Hefring is one of Aegir and Ran's wave-maidens, her name tied to the heaving motion of the sea — the slow lift of water gathering force before it breaks. She is surge made visible, the breath the ocean takes before it strikes.