One Piece (Series & Plot)

Theories under this category are related to the main plot and the series as a whole.

Top Theories/Speculations

  1. Theory Big Mom's Strongest - The 'Sweet Commanders' POWERS AND IDENTITIES
    In depth theory talking about who i believe to be the 3 sweet commanders and their powers. - by Joy_Boy
    Updated: Oct 11, 2016
  2. Theory Skypiea, ID and Blackbeard inspired by Dante's Divine Comedy (Bonus: Blackbeard's future DF)
    A theory that explains Skypiea, Impel Down and Blackbeard's connection to Dante's Divine Comedy. - by Mr. Tiddles
    Updated: Jan 14, 2017
  3. Theory The Extraterrestrial Origins Of The Ancient Kingdom & Celestial Dragons Revealed (Part 1)
    I believe that the Ancient Kingdom & 20 Kings both originated from the moon, "Fairy Vearth". Part 1. - by Saffron Kaizoku
    Updated: Aug 19, 2016
  4. Theory 5 HORSEMEN OF ONE PIECE
    symbolism and foreshadow of horsemen and anti Christ in one piece - by Dave
    Updated: Sep 9, 2016
  5. Theory Assassination of big mom purin's master plan [mini-theory ]
    purin's past and bond with lola - by Dave
    Updated: Jan 23, 2017

View All Featured Theories & Speculations

  1. Theory The Extraterrestrial Origins Of The Ancient Kingdom & Celestial Dragons Revealed (Part 1)

    I believe that the Ancient Kingdom & 20 Kings both originated from the moon, "Fairy Vearth". Part 1.
  2. Theory Dragon, His fruit is...?

    What the evidence says concerning Dragon's fruit type
  1. Theories & speculations are being shown from all child categories.
  2. Mladen
    0/5, 0 ratings
  3. Buggy226

    Speculation The Redemption of Vinsmoke Judge

    How Judge Vinsmoke will redeem himself for everything that he has done in the past.
    0/5, 0 ratings
  4. Raman
    0/5, 0 ratings
  5. BlackBe@rd
    3.66667/5, 3 ratings
  6. Genso
    1.5/5, 2 ratings
  7. Raman
    0/5, 0 ratings
  8. TheAncientTheorist
    2.33333/5, 3 ratings
  9. Raman
    1.8/5, 5 ratings
  10. Raman
    1/5, 1 rating
  11. Wolfram87
    2.33333/5, 3 ratings
  12. TheAncientTheorist
    0/5, 0 ratings
  13. MrZuga

    Theory One Piece similarity to Tigana

    One Piece similarity to Guy Gavriel Kay's book 'Tigana'
    0/5, 0 ratings
  14. Mahmoud Atia
    1/5, 2 ratings
  15. DeathWink
    0/5, 0 ratings
  16. TheAncientTheorist
    4/5, 2 ratings
  17. MiniSar
    4/5, 1 rating
  18. Dave
    4.52941/5, 17 ratings
    Updated:
    Feb 12, 2017
  19. TheAncientTheorist
    0/5, 0 ratings
    Updated:
    Feb 10, 2017
  20. Yakuwa
    3.8/5, 5 ratings
    Updated:
    Feb 8, 2017
  21. DeathWink
    4/5, 2 ratings
    Updated:
    Feb 7, 2017
  22. NONSENSENAP2
    0/5, 0 ratings
    Updated:
    Feb 6, 2017
  23. Wilsane
    2.5/5, 2 ratings
    Updated:
    Feb 6, 2017
  24. Master Theory

    Theory What will happen in One Piece!!!

    Final evil fight pirate Blackbeard vs Monkey D Luffy.
    1/5, 2 ratings
    Updated:
    Feb 6, 2017
  25. Naomi Rose
    4.8/5, 5 ratings
  26. AD07
    1/5, 4 ratings
    Updated:
    Feb 6, 2017
  27. Rob Gucci

    Theory Remnants of the 3-Eyed Tribe??

    Could these strange people in Chapter 771 be 3-eyes....
    4.33333/5, 3 ratings
    Updated:
    Feb 5, 2017
  28. DevilChild93

    Speculation SBS related theme & speculations for future SH crew member

    Possible future SH crew member related with SBS, along with some speculation of future members
    3.33333/5, 3 ratings
    Updated:
    Feb 4, 2017
  29. Cpt.
    2.75/5, 4 ratings
    Updated:
    Feb 4, 2017
  30. AD07
    3/5, 2 ratings
    Updated:
    Feb 4, 2017
  31. Luffy Fanboy

    Speculation Mandela Effect In One Piece? Thoughts On Void Century

    What if the Void Century was something like the Mandela effect?
    4.5/5, 2 ratings
    Updated:
    Feb 4, 2017
  32. PirateKnight
    5/5, 2 ratings
    Updated:
    Feb 3, 2017
  33. vikas

    Theory "TURN BACK" who wrote it.

    who wrote the message on the ship to turn back. a possible ally.
    3/5, 3 ratings
    Updated:
    Feb 3, 2017
  34. Monkey D. Steven
    3/5, 2 ratings
    Updated:
    Feb 3, 2017
  35. AD07
    1.5/5, 2 ratings
    Updated:
    Feb 3, 2017
  36. NakedPanda
    3.85714/5, 7 ratings
    Updated:
    Feb 3, 2017
  37. Moey Krimz
    3.85714/5, 7 ratings
    Updated:
    Feb 9, 2017
  38. AD07
    2/5, 2 ratings
    Updated:
    Feb 2, 2017
  39. amirkasem
    4/5, 4 ratings
    Updated:
    Feb 2, 2017
  40. Krishna Chaitanya
    1.6/5, 5 ratings
    Updated:
    Feb 1, 2017
  41. DeathWink
    1/5, 3 ratings
    Updated:
    Feb 1, 2017