| Episodes | Arc Name | Description |
|---|
| 54‑60 | Warship Island Arc | The Straw Hats rescue a girl named Apis and her dragon from a warship. Light adventure, no impact on main plot. (Beebom) |
| 98‑99, 102 | Arabasta Mini‑Filler | Stand‑alone mini‑stories around the Alabasta arc; fun but not required for main narrative. (OtakusNotes) |
| 131‑135 | Post‑Alabasta Arc | Episodes focusing on individual crew backstories and minor side events after Alabasta. (HowStuffWorks) |
| 136‑138 | Goat Island Arc | A light filler arc involving goats and a side island; can be skipped without missing core story. (OtakusNotes) |
| 139‑143 | Ruluka Island Arc | The Straw Hats visit an island ruled by a greedy mayor—not tied into the main manga events. (HowStuffWorks) |
| 196‑206 | G‑8 Arc | The Straw Hats infiltrate a Marine base. While technically filler, this arc is highly praised and many fans recommend watching. (OtakusNotes) |
| 220‑224 | Ocean’s Dream Arc | Based on a video‑game tie‑in: the crew loses their memories. Pure filler. (Epicstream) |
| 225‑226 | Foxy’s Return Arc | The return of the Foxy Pirates and the Davy‑Back Fight. Fun side story, not important to the main plot. (OtakusNotes) |
| 279‑283 | Straw Hat’s Backstories Arc | More crew‑centric stories; entertaining but not necessary for overarching story threads. (OtakusNotes) |
| 291‑292, 303 | Straw Hat & Buggy’s Adventures / Boss Luffy Arc | Miscellaneous mini‑arcs involving Buggy & the crew. Side stories only. (Epicstream) |
| 317‑319 | Post‑Enies Lobby Filler Arc | Filler after the Enies Lobby saga. Some consider bits watch‑worthy though mostly optional. (OtakusNotes) |
| 326‑336 | Ice Hunter (Lovely Land) Arc | A longer filler arc where the Straw Hats are hunted on an island. Many skip it. (CRUNCHYFLIX) |
| 382‑384 | Spa Island Arc | The crew visits a spa island. Fun for character moments but filler. (OtakusNotes) |
| 406‑407 | Boss Luffy Arc | Short filler arc with comedic elements; doesn’t affect main storyline. (OtakusNotes) |
| 426‑429 | Little East Blue Arc | A mixed canon/filler arc with ties to a movie; optional. (OtakusNotes) |
| 457‑458 | Marineford Recap / Filler | Recap episodes following Marineford war; mainly filler. (OtakusNotes) |
| 492 | Toriko Crossover 1 | Crossover with another series. Fun, but not part of the one‑piece manga canon. (Epicstream) |
| 542 | One Piece x Toriko Crossover 2 | Another crossover episode; optional unless you like both series. (OtakusNotes) |
| 575‑578 | Z’s Ambition Arc | Filler arc not directly tied to the major manga events; many viewers skip. (OtakusNotes) |
| 590 | Toriko x DBZ x One Piece Crossover | Triple‑crossover special; niche interest only. (Epicstream) |
| 626‑628 | Caesar Retrieval Arc | Filler arc where the crew rescues Caesar; no major manga relevance. (CRUNCHYFLIX) |
| 747‑750 | Silver Mine Arc | Filler arc later in the series; side‑story only. (OtakusNotes) |
| 780‑782 | Marine Rookie Arc | Short filler arc; minimal impact on main story. (OtakusNotes) |
| 895‑896 | Cidre Guild Arc | Filler episodes focused on side adventures; optional. (Anime Filler List) |
| 907 | Romance Dawn Special | Adaptation of the pilot manga via anime; more optional special content. (Anime Filler List) |
| 1029‑1030 | Uta’s Past / Red Movie Tie‑In | Filler episodes tied to the film; skip unless you care about movie tie‑ins. (OtakusNotes) |
