Theories & Speculations

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  1. One Piece (Series & Plot) 1,225
  2. Characters 2,219

Top Theories/Speculations

  1. Theory Ancient Weapons: Astronomy, The real source
    Moons of Pluto, Uranus and Neptune are the inspiration for Ancient Weapons - by CAMUNAI
    Updated: Aug 31, 2017
  2. Theory Sanji's Hidden "Cosmic" Power
    An old SBS may hold a clue to Sanji's true power. - by Theo Ries
    Updated: Oct 10, 2016
  3. Theory Luffy's Awakening 3 :Haoshoku Haki
    The return of True King : Applications of Conquer's Haki - by Dave
    Updated: Mar 7, 2017
  4. Theory Journey to Uranus :Winged Race
    4th Ancient Weapon -Devil fruits origins & Secret of Yami Yami no mi - by Dave
    Updated: Mar 28, 2017
  5. Theory Chopper's Dream
    Chopper's Road to becoming Panacea - by Dave
    Updated: Aug 19, 2016

View All Featured Theories & Speculations

  1. Theory Greenbull has an Ancient Zoan Devil fruit: Wani Wani No Mi model: prehistoric crocodile.

    Wani Wani No Mi model: prehistoric crocodile. The supercroc you don't want to face.
  2. Speculation Nami's connection to Romanian lore and a bigger role to play in Wano

    Nami and her abilities may be inspired from Solomonars, Romanian weather wizards.
  3. Theory Sanji's Hidden "Cosmic" Power

    An old SBS may hold a clue to Sanji's true power.
  4. Theory The ultimate Nico Robin theory! - To Wano, the well of the Poneglyphs! (UPDATED 02.03.2019!)

    Some analysis on our favourite-swan Robin! Everything might lead up to Wano+! Analyzing the threats!
  5. Theory The origin and history of Devil Fruits

    Fitting together Winged Races, the AK, Im, Davy Jones, Raftel and more!
  1. jinz
    5/5, 3 ratings
  2. Ma_D._Monk
    1/5, 3 ratings
  3. Donal D. Trump
    4.5/5, 2 ratings
  4. Donal D. Trump
    5/5, 2 ratings
  5. ODACCHI
    5/5, 5 ratings
  6. LogPose
    4.5/5, 2 ratings
  7. King of beasts kaido
    5/5, 4 ratings
  8. Donal D. Trump

    Speculation Law's trick

    Law has been hiding something from us since Punk Hazard
    4/5, 1 rating
  9. Coby D. bryant
    2/5, 3 ratings
    Updated:
    Apr 17, 2019
  10. Spitting Rednose

    Speculation GOKEN!! The Ability to Produce Shockwaves

    has the goken technique been showcased previously in the story
    0/5, 0 ratings
    Updated:
    Apr 16, 2019
  11. ODACCHI
    5/5, 11 ratings
    Updated:
    Apr 16, 2019
  12. Sniper king ussop
    0/5, 0 ratings
    Updated:
    Apr 16, 2019
  13. jinz
    5/5, 3 ratings
    Updated:
    Apr 14, 2019
  14. King of beasts kaido

    Speculation Rocks : THE BEATLES OF ONE PIECE !!

    The Rocks Pirates are influenced by the Beatles !! Whitebeard Big mom Kaido and the Lurking Legend
    4.75/5, 4 ratings
    Updated:
    Apr 14, 2019
  15. Carrotlaststrawhat

    Speculation Could Koshiro be Denjiro?

    Could Koshiro , the sensei from Zoro in east Blue be Denjiro?
    3.5/5, 4 ratings
    Updated:
    Apr 13, 2019
  16. McNibbler

    Speculation Could Kuma be the Child of whitebeard and bonney

    Knowing that Bonney could be an older woman and Marco who hints of whitebeard having had women
    1/5, 1 rating
    Updated:
    Apr 13, 2019
  17. The_locks

    Speculation Komurasaki devil fruit

    Komurasaki was killed and then was revived
    1.75/5, 4 ratings
    Updated:
    Apr 11, 2019
  18. L o g i a

    Speculation The Future of the Blackbeard Pirates

    Outlining predictions for the Blackbeard Pirates, their powers and what to expect from their members
    4.8/5, 5 ratings
    Updated:
    Apr 11, 2019
  19. Black Flame Titan
    2/5, 2 ratings
    Updated:
    Apr 9, 2019
  20. Donal D. Trump

    Theory The Forsaken

    We are going to explore the original sin of the One Piece world
    5/5, 7 ratings
    Updated:
    Apr 8, 2019
  21. izaya10
    4/5, 2 ratings
    Updated:
    Apr 8, 2019
  22. Critical Mindset

    Speculation The history of Lady Toki and Wano post Void Century; Kaido targeted Toki, not Oden.

    How Lady Toki ended up journeying through time in Wano - and how Kaido figured out her history
    5/5, 3 ratings
    Updated:
    Apr 8, 2019
  23. MyNameIsVoodoo
    0/5, 0 ratings
    Updated:
    Apr 8, 2019
  24. Ashura the demon
    4.66667/5, 3 ratings
    Updated:
    Apr 7, 2019
  25. izaya10
    4.5/5, 2 ratings
    Updated:
    Apr 5, 2019
  26. Yehia
    3/5, 1 rating
    Updated:
    Apr 4, 2019
  27. Hithere
    4/5, 2 ratings
    Updated:
    Apr 3, 2019
  28. aptop6

    Theory The NAKAMAS Straw hats needs the most

    What is the occupations the last two nakamas going to have
    1/5, 3 ratings
    Updated:
    Apr 2, 2019
  29. Critical Mindset
    4.5/5, 4 ratings
    Updated:
    Apr 2, 2019
  30. Rej

    Theory Usopp's and Nami's connection to Madame Shirley and their roles in Elbaf!

    Usopp's lies are not comming true. Nami also has HUGE tied to the GIANT TRIBE!
    5/5, 2 ratings
    Updated:
    Apr 1, 2019
  31. Tejas
    3.875/5, 8 ratings
    Updated:
    Apr 1, 2019
  32. Donal D. Trump

    Theory The Deepest Truth of Observation Haki

    What can observation haki really do and why is it relevant in Wano?
    4.66667/5, 3 ratings
    Updated:
    Mar 31, 2019
  33. GangMemberLeo
    5/5, 2 ratings
    Updated:
    Mar 31, 2019
  34. KenshiraSonata
    1.14286/5, 7 ratings
    Updated:
    Mar 31, 2019
  35. Nessos

    Speculation Kyoshiro's true identity!

    The last big plot twists in Wano will have to do with Kyoshiro!
    4.58333/5, 12 ratings
  36. Jibon1992
    3/5, 1 rating
    Updated:
    Mar 30, 2019
  37. Hithere
    0/5, 0 ratings
    Updated:
    Mar 30, 2019
  38. SotonskiMuflon
    3.2/5, 5 ratings
    Updated:
    Mar 30, 2019
  39. Jaga D Jesus

    Speculation How strong is Koby currently in the series?

    Though he is not exclusively shown lately in the series, how strong do you think Koby has gotten?
    3/5, 4 ratings
    Updated:
    Mar 29, 2019
  40. PapiZoro
    2.57143/5, 7 ratings
    Updated:
    Mar 29, 2019
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