A form of NamesToRunAwayFromReallyFast.

Anything [[SesquipedalianLoquaciousness really long]] or otherwise impossible to pronounce on the first try. Creator/HPLovecraft made this his stock in trade. For example, Cthulhu, Ithaqua, Shub-Niggurath, Y'golonac (YOU FOOL! [[SpeakOfTheDevil YOU'VE DOOMED US ALL!!]]), Nyarlathotep,Yog-Sothoth, Etc.

Remember, you should always consider the original language of the story. Something impossible to pronounce can be perfectly easy to say for someone who hears things like that for their whole life. The same applies if character is supposed to be a foreigner; it might be normal for the country of his origin.

----
!!Examples:

[[foldercontrol]]

[[folder:Anime and Manga]]
* Many of the arrancar from ''Manga/{{Bleach}}''. Aaroniero Arruruerie, Nnoitra Gilga, Grimmjow Jaegerjaquez, Ulquiorra Cifer, Szayelaporro Granz... the list goes on and on.
** Actually, the Arrancar names are quite easy. However, the some names of the Sternenritter are just...
[[/folder]]

[[folder:Comicbooks]]
* [[{{Superman}} Mr. Mxyzptlyk]]
* [[Comicbook/GreenLantern Dkrtzy Rrr]], [[MindScrew a living mathematical equation]].
[[/folder]]

[[folder:Film]]
* [[OfficeSpace Samir Nagheenanajar.]]
* [[NoCountryForOldMen Anton Chigurh.]]
* Dr. Hfuhruhurr and Anne Uumellmahaye from TheManWithTwoBrains. Part of their mutual attraction is their ability to pronounce and spell each other's names.
[[/folder]]

[[folder:Literature]]
* From the Franchise/StarWarsExpandedUniverse: Grand Admiral Mitth'raw'nuruodo, known to the galaxy as Thrawn.
** Borborygmus Gog in ''Literature/GalaxyOfFear''. "Borborygmus" is actually a real word that means stomach sounds.
* The ''ForgottenRealms'' books have a habit of giving their dragons hideously long names.
* Most of the [[Creator/HPLovecraft Lovecraft]] horrors fall into this category, but the one you must always be mindful for is simple. If someone says 'Hastur, Hastur...' you have two options. You can shoot the man before he can say the third Hastur, or you can run, and never, ever look back. Nothing makes a person haul ass faster than a summoned EldritchAbomination.
* One example of [[IDontLikeTheSoundOfThatPlace a place name like this]] is Zzyzx from the ''Literature/{{Fablehaven}}'' series. Zzyzx happens to be named after a real settlement in San Bernardino County, California.
* Parodied in ASeriesOfUnfortunateEvents -- The cruel and uncaring boss of Lucky Smells Lumbermill has an apparently unpronounceable name that is never given to the reader (and all attempts by Mr Poe at pronouncing it appear completely different). He is instead called "Sir".
* ''TheSecretsOfTheImmortalNicholasFlamel'':
** Tsagaglalal.
** Huitzilopochtli, the name by which the Aztecs knew the god Mars Ultor. Huitzilopotchtli is a real life Aztec god, which makes this doubly unpronounceable - the form you see written here is the closest, phonetic, Spanish approximation of the original Aztec.
** Coatlicue, the Mother of All the Gods.
** It's a bit of a RunningGag that Machiavelli has trouble pronouncing Quetzalcoatl's name.
* The demon from ''Literature/ArtemisFowl'': N* 1, which is apparently supposed to be pronounced 'Number one', but is still a pain to read aloud.
* Creator/RogerZelazny's fantasy novel ''The Changing Land'' features a demon named Melbrinionsadsazzersteldregandishfeltselior. The long name is necessary for the invocation ritual, and if the sorcerer attempting it were to get as much as one syllable wrong, the demon would kill him. Understandably, wizards are reluctant to attempt it. Subverted inasmuch as one of the antagonists is a wizard named Baran, whose native tongue is a horribly complicated agglutinative language, so he has no problem pronouncing the name and using the demon for errands.
* On the ''Literature/{{Discworld}}'', demons are given names that look like they were selected by headbutting a keyboard; when the demon WxrtHltl-jwlpklz introduces himself in Wyrd Sisters, Nanny Ogg quips, "Where were you when the vowels were handed out, behind the door?" Her co-witch, Granny Weatherwax, pronounces it without raising a sweat. While there are hideous beasts from the dungeon dimensions a la Cthulhu, more description is given to their forms than names (they're usually described as what might be the offspring of an octopus and a bicycle).
* ''LightNovel/HaiyoreNyarkoSan'', which stars Nyarlathotep (but please, call her Nyarko). When she first appears she mentions that Nyarlathotep is just a nickname, and she has a real name; later novels reveal that humans have a very difficult time pronouncing it, and just being able to comprehend it can strengthen the bonds between a man and a woman.
[[/folder]]

[[folder:Live-Action TV]]
* ''Series/DoctorWho'':
** Romanadvoratrelundar. While her first two incarnations were OK, even travelling with the Doctor, her [[AudioPlay/{{Gallifrey}} third incarnation]] was... ruthless, to say the least.
** The Raxacoricofallapatorian aliens are a subversion. The ones we meet are usually villains, but most Raxacoricofallapatorians are actually LawfulGood. Some individual Raxacoricofallapatorian baddies, though, have hard-to-pronounce names (Blon Fel-Fotch Passameer-Day Slitheen, anyone?).
** The Mighty Jagrafess of the Holy Hadrojassic Maxarodenfoe.
[[/folder]]

[[folder:[=MMORPG=]s]]
* C'thun, Yogg-Saron, named faceless ones (R'khem, Volasj, etc), and named nerubians (Tutenkash, Anub'rekhan, etc) in ''VideoGame/WorldOfWarcraft''.
[[/folder]]

[[folder:Music]]
* Sunn O)))--including whatever that is after the Sunn part; you just don't pronounce it--has a song called "Big Church [Megszentségteleníthetetlenségeskedéseitekért]". Anyone familiar with their music in the least knows that this church is most certainly evil.
[[/folder]]

[[folder:Mythology]]
* The whole Aztec pantheon. Mictlantecutli, Centzon Huitznahua, Chalchiuhtlicue... They're doubly unpronouncable because the forms you see written here are the closest, phonetic, Spanish approximations of the original Aztec.
* Although the name of the Jewish God is written as YHWH (which looks unpronounceable) that's due to it being a literal transliteration of the name from Hebrew, where it is written without vowels. This doesn't mean there are no vowels, just that they aren't shown (which is done often in Hebrew; vowel marks weren't added to the written language until the 9th century). However, God may have much longer mystical names (depending on the religious theories and interpretations) of up to seventy-two letters which have been lost at this point; these might fall into this trope.
** Some scholars think that pronunciation of YHWH would actually be all breath sounds, leading to "God is breath/life." Which brings up the question "Can you pronounce breathing?"
** Also, it is actually forbidden to Orthodox Jews to pronounce God's real name. When reading the Torah (which is done aloud), one just replaces it with "adonai" meaning Lord. This custom has persisted in Christianity despite Christians being allowed to pronounce God's name.
** This is the source of the word Yehovah, reading YHWH with the vowels from adonai.
--> ''[[Film/MontyPythonsLifeOfBrian Jehovah, Jehovah, Jehovah!]]''
** Even the word YHWH is actually a shortened version of the "real" name of God, which was allegedly dozens of syllables long and originally passed down in secret by the Levi clan and only pronounced aloud in the innermost chamber of His temple during the most sacred rituals. As far as anyone can tell, it has been lost to history.
[[/folder]]

[[folder:Tabletop Games]]
* Tht Whch Hs N Vwls ([[DontExplainTheJoke That Which Has No Vowels]]) from ''TabletopGame/{{Munchkin}} Cthulhu''.
* This became a problem with Yawgmoth's name in ''MagicTheGathering'', to the point the French version changed it to the more pronouncable "Yaugzebul".
* The ''YuGiOhCardGame'' has the Earthbound Immortal monsters. All of their names are in the Quechua language and have names like Ccarayhua and Wiraqocha Rasca.
[[/folder]]

[[folder:Videogames]]
* [[VisualNovel/{{Tsukihime}} Nrvnqsr Chaos, Arcueid Brunestud, Kischur Zelretch Schweinorg...]]
* [[VideoGame/QuestForGlory Avoozl.]]
* [[VideoGame/KingsQuestI Ifnkovhgroghprm.]] ([[spoiler:Rumplestiltskin in [=ROT13=].]])
* Chattur'gha, Xel'lotath, and Ulyaoth of ''EternalDarkness''.
* The W'rkncacnter from ''VideoGame/{{Marathon}}''.
* Chthon and Shub-Niggurath in ''VideoGame/QuakeI''.
* The BigBad of ''Videogame/AloneInTheDark1992'' is an undead pirate named Pregzt, and there's also a giant SandWorm called the Chthonian, named after an Creator/HPLovecraft beast, although it looks nothing like Lovecraft depicted (which was more like a squid).
* VideoGame/KingdomHearts has Marluxia. [[NoPronunciationGuide Once you hear it, however]], [[AvertedTrope it just becomes a weird name]].
* The seventh VideoGame/LeisureSuitLarry game has a character named Xqwzts, which Larry pronounces roughly like "Exquisites".
[[/folder]]

[[folder:Webcomics]]
* K'Z'K the Voweless One from ''Webcomic/SluggyFreelance''. So much that people can't pronounce it well, and that infuriates him.
* From ''Webcomic/{{Homestuck}}'', Feferi Peixes's lusus is a monstrous, tentacled mass named Gl'bgolyb.
** The Zoologically Dubious beasts from Rose's grimoire have these kinds of names. Nrub'yiglith stands out in particular.
* Secret from ''KeychainOfCreation'' has a name so long that she can't pronounce it without fainting in the [[http://keychain.patternspider.net/archive/koc0001.html attempt]].
[[/folder]]

[[folder:Web Originals]]
* '''''BKCRMWDJVG''''' of the WhateleyUniverse, a demon who has its own hell dimension.
[[/folder]]

[[folder:Western Animation]]
* [[WesternAnimation/{{Futurama}} Nibbler's]] real name, apparently due to time constraints.
* [[WesternAnimation/{{The Simpsons}}]] The chef of the Rigillians that adbuct the Simpson family in the first Treehouse of Horror. "To pronounce it correctly, I would have to pull out your tongue."
[[/folder]]

----