25 Harry Potter and the Dragon Rider of Berk » by dracomalfoysbiggestfan When Charlie Weasley finds out about Norbert from Ron he sends a letter to the greatest dragon trainer in the world, what follows is definitely not what Dumbledore had in mind for Harry's first and subsequent years at Hogwarts. This is a Hiccup adopts Harry fic, so here goes. also my first HTTYD fic too.

12 Hiccup Haddock and the Winged Beasts » by Toothlove HTTYD/Harry Potter crossover where Hiccup and the gang begin their time at Hogwarts. I'd say more but that would be giving stuff away.

4 Harry PotterHTTYD oneshot! » by allymisojin Title says it all! These are small oneshots of my Always be There For You AU. Sio if you hadn't read the series I do hope you do. It'll be very hard to understand anything if you don't. Enjoy!

5 Always Be There For You: What If » by allymisojin Hiccup ended up in Hogwarts. Berk is long gone. Hiccup meets Harry and helps him go through his fourth year. What if he didn't leave at all?

23 Dragons: Race to the Burrow » by DragonsAndBroomsticks When a stranger with bright red hair and burn marks shows up in Berk asking for help, the Riders are not so sure. But when Drago Bludvist and his dragon army are mentioned, their interest is piqued. Follow the Dragon Riders as they fly into battle once again; but this time, the fate of the Wizarding World is at stake along with that of their own. Set after RTTE and OOTP.

14 Dragon by Yuni Stark Tome 4 : Harry passe la première épreuve du tournois d'une différente façon. Simple OS rapide.

2 Watching HTTYD with wizards » by allymisojin The vikings are at Hogwarts and trained the dragons for the Triwizard Tournament. Then Dumbledore shows the wizards and vikings a movie called How To Train Your Dragon. (Poor opening)

1 What is Time? » by skypony02 Hiccup and the gang, aged 16, accidentally time travel to 2023! Albus S.P and Scorpius Malfoy are also 16 and 6th years. Elsa is a 7th year, Anna is a 5th year, and Kristoff & Hans are 6th years. This is an AU so some things (like the age differences between the Frozen characters) will differ from canon. Also there will be queer characters / ships. Don't like it, don't read it.

80 Hiccup and the Wizarding World - Vol 1: the Goblet of Fire » by Theguywholikestowrite It was a normal summers night when it happened. On the grounds of Hogwarts School of Witchcraft and Wizardry, a crack through space-time opened and from it came out a Viking boy and a Night Fury. There, Hiccup is shocked to discover that he is in fact a wizard, that every magical child was raised up knowing his name and the sad truth of what happened to the dragons.

64 Between Wizards And Vikings » by YadiraSleepingSky "What kind of name is Severus?" She asked. "What kind of name is Hemlock?" He countered... this wasn't exactly the kind of conversation he hoped for, not even for their first actual serious conversation. But after turning into a dragon, he didn't know what to expect any more. Fem!Hiccup

5 Reborn:Fury by magic in me The world is so different, so new, compared to what she's seen before. However, Helga Horrendous Haddock was determined to see that the dragons wouldn't suffer like Harry's people had so long ago. (11) SPOILER WARNING: DO NOT READ IF YOU HAVEN'T SEEN HOW TO TRAIN YOUR DRAGON: HIDDEN WORLD!

6 Charlie Weasley y los Secretos de Berk » by EmmeCc Para poder graduarse como dragonologista, Charlie Weasley decide viajar a Noruega para aprender todo lo que pueda sobre los dragones que alguna vez habitaron las islas nórdicas y los Vikingos con los que convivieron. Charlie se embarca en este viaje sin saber que está a punto de enfrentarse a historias y secretos mucho más interesantes y peligrosos de los que había ido a buscar.