These are the soundtracks of HTTYD, HTTYD2, and HTTYDTHW.
How to Train Your Dragon[]
1. This is Berk - https://www.youtube.com/watch?v=0KgCOugiUMM
2. Dragon Battle - https://www.youtube.com/watch?v=-5cd2jTUlRA
3. The Downed Dragon - https://www.youtube.com/watch?v=b7Y3WUrfAUg
4. Dragon Training - https://www.youtube.com/watch?v=XoB8HY5tFuo
5. Wounded - https://www.youtube.com/watch?v=JvAV3SKkrd4
6. The Dragon Book - https://www.youtube.com/watch?v=26eJEk0zFd4
7. Focus, Hiccup! - https://www.youtube.com/watch?v=UYR_XrOD320
8. Forbidden Friendship - https://www.youtube.com/watch?v=zjgpMXbjPjI
9. New Tail - https://www.youtube.com/watch?v=KWqJKLefmTU
10. See You Tomorrow - https://www.youtube.com/watch?v=1PLf3aKGeG8
11. Test Drive - https://www.youtube.com/watch?v=hf-EcBmbMuI
12. Not So Fireproof - https://www.youtube.com/watch?v=QyMlKCwtaOI
13. This Time for Sure - https://www.youtube.com/watch?v=wSFShGza-Tk
14. Astrid Goes for a Spin - https://www.youtube.com/watch?v=Ag9U-Qr_RyU
15. Romantic Flight - https://www.youtube.com/watch?v=RMmKARSV0VE
16. Dragon's Den - https://www.youtube.com/watch?v=8oX5x6mD6vM
17. The Cove - https://www.youtube.com/watch?v=JJEsLxQ0OK0
18. The Kill Ring - https://www.youtube.com/watch?v=h2GKQvqw1QE
19. Ready the Ships - https://www.youtube.com/watch?v=w9a_Z3piwx4
20. Battling the Green Death - https://www.youtube.com/watch?v=CkmZqWPPBe4
21. Counter Attack - https://www.youtube.com/watch?v=Q48QEbaDUjI
22. Where's Hiccup? - https://www.youtube.com/watch?v=TqKEuyG6GFE
23. Coming Back Around - https://www.youtube.com/watch?v=u3pNVBgMyME
24. Sticks and Stones - https://www.youtube.com/watch?v=KpZIcibp-6U
25. The Vikings Have Their Tea - https://www.youtube.com/watch?v=vFiTZG1z5QQ
How to Train Your Dragon 2[]
1. Dragon Racing - https://www.youtube.com/watch?v=7PnltVxofI4
2. Together We Map the World - https://www.youtube.com/watch?v=Dw6BieV2Yp4
3. Hiccup The Chief/Drago's Coming - https://www.youtube.com/watch?v=WkDWnD9HY1I
4. Toothless Lost - https://www.youtube.com/watch?v=IW_U4H1oksA
5. Should I Know You? - https://www.youtube.com/watch?v=Ac7Pd9NkR8A
6. Valka's Dragon Sanctuary - https://www.youtube.com/watch?v=503UJ3hzdbQ
7. Losing Mom/Meet the Good Alpha - https://www.youtube.com/watch?v=cVJYPg8UIKQ
8. Meet Drago - https://www.youtube.com/watch?v=y6DsErxzm_I
9. Stoick Finds Beauty - https://www.youtube.com/watch?v=rnCRmbfBTAU
10. Flying with Mother - https://www.youtube.com/watch?v=3Iutm1sUzG
11. For the Dancing and the Dreaming - https://www.youtube.com/watch?v=r-lCYbv3WAc
12. Battle of the Bewilderbeast - https://www.youtube.com/watch?v=PsQtlY-Amqc
13. Hiccup Confronts Drago - https://www.youtube.com/watch?v=MMdOjApcJZ8
14. Stoick Saves Hiccup - https://www.youtube.com/watch?v=JAOWN8qCqbI
15. Stoick's Ship - https://www.youtube.com/watch?v=CwZ2_6EEtCg
16. Alpha Comes to Berk - https://www.youtube.com/watch?v=gEtD8GEmqJo
17. Toothless Found - https://www.youtube.com/watch?v=U40S3baLhCo
18. Two New Alphas - https://www.youtube.com/watch?v=e2_JIWk9a1o
19. Where No One Goes - https://www.youtube.com/watch?v=BnWP8RA3r-E
How to Train Your Dragon: The Hidden World[]
1. Raiders Return to Busy, Busy Berk - https://www.youtube.com/watch?v=5UnlVZv2rjs
2. Dinner Talk / Grimmel's Introduction - https://www.youtube.com/watch?v=pXKOtBPaD_U
3. Legend Has It / Cliffside Playtime - https://www.youtube.com/watch?v=TIBl9AGrzGU
4. Toothless: Smitten - https://www.youtube.com/watch?v=FZnfStiXhj4
5. Worst Pep Talk Ever - https://www.youtube.com/watch?v=Q8Fm0Af-Gv0
6. Night Fury Killer - https://www.youtube.com/watch?v=mGcA_lNndzs
7. Exdous! - https://www.youtube.com/watch?v=JZpYciX27Vk
8. Third Date - https://www.youtube.com/watch?v=5GnjaKpnIpg
9. New 'New Tail' - https://www.youtube.com/watch?v=Se4gMYim5Y0
10. Furies in Love - https://www.youtube.com/watch?v=BUYGFFLVTOM
11. Killer Dragons - https://www.youtube.com/watch?v=FG2egB0bH-4
12. With Love Comes a Great Waterfall - https://www.youtube.com/watch?v=GEa_ORrwPRs
13. The Hidden World - https://www.youtube.com/watch?v=atSzqo_x7x0
14. Armada Battle - https://www.youtube.com/watch?v=p1U2OCOqurU
15. As Long as He's Safe - https://www.youtube.com/watch?v=cLvMiSpMBjs
16. Once There Were Dragons - https://www.youtube.com/watch?v=WbsI4OMwh-w
17. Together From Afar - https://www.youtube.com/watch?v=pxlG-1fVGwg