How to create troll names that sound believable
Troll names work when they sound heavy and feel guttural to pronounce. Stop consonants (k, g, b, d) and affricates (th, sh) imitate roars and growls. Tolkien set the pattern in The Hobbit with Tom, Bert and William (ironically human), but also with names like Olog-hai in The Lord of the Rings: short, guttural, with a g and an aspirated h that evoke something primitive.
A useful technique is combining two heavy syllables with a descriptive epithet. Grolmash the Bridgesmasher says more than a generic name: it tells a story. The audience intuits this troll lives under a bridge, destroys structures, is violent. In tabletop campaigns, this makes Game Master improvisation easier: the name already suggests behavior.
Avoid names that sound elegant or melodic. Trolls aren't elves. Aelendir doesn't work; Brokksmash does. Also avoid overly comic names unless your tone is humorous, like in Pratchett's Discworld where trolls are named Detritus, Brick, Chrysoprase, playing with rocky materials.
Trolls in mythology and literature: traditions you can use
Scandinavian folklore distinguishes two types: jötnar (monumental, almost divine giants like Ymir or Surtr) and popular trolls (cavern and forest creatures, smaller but dangerous). In Icelandic sagas, trolls petrify in sunlight, a motif Tolkien adopted. If your world respects that rule, names can reference stone, shadow or night: Skarn of the Hollow Cavern suggests someone who never saw daylight.
In Norwegian legends, bridge trolls demand toll from travelers. Three Billy Goats Gruff popularized this variant. For your generator, an epithet like Glacierkicker or Travelerhanger evokes that tradition. Finnish mythology offers hiisi, evil forest spirits, inspirational base for clans like 'of the Burned Forest' or 'of the Cursed Moor'.
In video games, World of Warcraft reinterpreted trolls as tribal culture with leaders (Vol'jin, Zul'jin), departing from the brute stereotype. If you want this direction, combine a short name with apostrophe and a strong geographical clan. Drog'thar of the Lament Mountains works as a tribal chief, not solitary beast.
Common mistakes when naming trolls in roleplay
First: using the same name for repeated generic trolls. If three trolls attack the party and all are 'Grog', you lose impact. Better differentiate: one is Grog Bonebreaker, another Murl the One-Eyed, another Brokk Three-Fingers. Even in brief combat, those names ease narration and players remember the troll that lost a finger during the fight.
Second mistake: unpronounceable names. If your DM stumbles over 'Khrzthugmokh', they'll mentally abbreviate and the effect is lost. Try saying the name three times before adopting it. Same applies to writing: names with hyphens, apostrophes and obscure Nordic letters (æ, ø, þ) slow reading. Use sparingly, only on important characters.
Third mistake: ignoring social hierarchy. In organized troll cultures, chiefs have longer, more bombastic names; underlings, shorter functional ones. A diplomatic emissary might be called Ugthar Vorgmash, Voice of the Black Marsh, while a foot soldier is simply Krug. That difference communicates status without forced exposition.
Adapting troll names to different narrative tones
For classic heroic fantasy (Tolkien-style or traditional D&D), prioritize threatening sonority and epithets that tell deeds: Throg Villagecrusher, the Bonecrunch. Audience immediately understands this is a major antagonist. These names work well in omniscient narrator or limited third person.
For dark fantasy like The Witcher or A Song of Ice and Fire, use simpler names but with cold epithets. Vorn the Fetid, of the Pit of Oblivion suggests misery, not epic grandeur. Sapkowski rarely glorifies monsters: he presents them as functional creatures in a cruel world. Your nomenclature should follow that brutal realism.
For humor, leverage Pratchett and combine technical rock name with absurd epithet: Granite the Slow Thinker. In children's video games like DreamWorks' Trolls, abandon the warlike register and use soft syllables with rounded consonants: Branch, Poppy, DJ Suki. Adapt the generator to your tone: filtering brutal epithets if your work is for kids prevents breaking the emotional contract with the reader.