* AdaptationDisplacement: 90's anime in Scandinavia and Japan. Late 70's-80's series in the rest of Europe.
* BadExportForYou: Strangely enough. The GameBoyColor game ''Moomin no daibouken'' was released first in Japan. When it was eventually released in its home region of Europe[[note]]Remember that The Moomins were created in Finland[[/note]] as ''Moomin's Tale'', half of the content as well as many cutscenes were absent...
** NoExportForYou: ...unfortunately, the US did not get a release of the game at all.
* EarWorm: The theme tune to the animated adaption. ''They were the Moomins, ba-papa-da-ba-da-bada-ba-ba...''
* EnsembleDarkhorse: Almost everyone outside the main character. The first one that pops in mind is Snufkin, but Little My is almost as popular.
* HeterosexualLifePartners: Snufkin and Moomin.
* GermansLoveDavidHasselhoff: For a Finnish franchise, the Moomins are extremely popular in Japan.
** The anime series was popular in Hawaii, airing on the local UPN affiliate.
* MemeticMutation: EVERYONE in Scandinavia and Poland are afraid of the Groke. No exceptions. The show was IMMENSELY popular, and everyone of the generation that watched the 90's animated series remembers that freaking thing. It was one of the ONLY times in Scandinavia that a show was pulled off the air (for a time) because parents called and complained about it being too scary. That almost never happens there.
* NightmareFuel: The Groke was this to any child who ever watched the show.
** The Lady of the Cold, with her creepy singing and ability to freeze people where they stand.
* ViewerGenderConfusion: [[http://syko.typepad.com/.a/6a010536bfff2d970c012875f7273a970c-pi Too-Ticky]] and the Groke. You wouldn't know they were female simply by looking at them.
** Not to mention Thingumy and Bob. You might presume they're female like their real life counterparts but the English names are rather confusing, especially "Bob". And the original names, Tofslan & Vifslan, give even less of a hint of their genders. The original Swedish novel never mentions their genders. But it does it so skillfully that you won't notice until you start wondering what their genders are.
** For the readers of the Finnish translation this goes UpToEleven. Unlike Swedish (and English) Finnish doesn't distinguish gender grammatically, not even in pronouns. Thus there's no he/she distinction. One can read all the books and all the comics and watch all the adaptations in Finnish and never find out the genders of the more ambiguous characters. Hence the confusion of many Finns when they find out the Groke was female all along (not helped by the voice given to her in the Finnish dub of the animated series). Thingumy and Bob are similarly difficult to figure out. Too-Ticky is slightly easier since her name sounds a lot like her real life counterpart's Tuulikki, which is a Finnish woman's name. (And even then people can be confused. While the -kki ending is more common in feminine names, it's by no means a strict rule.)
* WhatDoYouMeanItsNotDidactic: There's a book that uses the characters to illustrate concepts from existentialist philosophy. It works surprisingly well.
* WhatDoYouMeanItsForKids / WhatDoYouMeanItsNotForKids: Uniquely, the Moomins fit ''both'' tropes. The later books in the series ''aren't'' really children's books (something which Tove Jansson herself acknowledged), touching on a lot of themes that kids won't understand. The newspaper comic, while less dark, contains a lot of satire directed primarily at adults: The Moomins' bohemian lifestyle is often mocked, with the characters played for fools in a lot of subtle ways, but other, more "normal" lifestyles are frequently held up for examination and found to be even more foolish. At the same time, earlier books and works which ''are'' primarily directed at children, contain some pretty dark undertones and subtle adult humor. The '90s animated series and its spin-offs are more clearly aimed at children (though even there the undertones aren't completely gone), which is the main reason why so many older Moomin fans don't like it.
* TheWoobie: The Groke especially gets this treatment in the last books.
** Sniff, especially in the books. In the animated series, he veers more towards a JerkassWoobie.
** Sorry-Oo was basically designed to be this.
** Ninny, the invisible girl who was abused by her aunt
** Fillyjonk's children. They are not allowed to have fun!