Production notes

In July 2017, Weekly Shōnen Jump editor-in-chief Hiroyuki Nakano announced that Tomorrow Studios (a partnership between Marty Adelstein and ITV Studios) and Shueisha would commence production of an American live-action television adaptation of Eiichiro Oda's One Piece manga series as part of the series' 20th anniversary celebrations. Oda was set to serve as executive producer alongside Marty Adelstein and Becky Clements. The series was planned to begin with the East Blue saga and was noted for its high production ambitions. In January 2020, it was revealed that Netflix had ordered a 10-episode first season. Production was delayed due to the COVID-19 pandemic, though scripts were already completed. In 2021, production resumed under the codename Project Roger, Steven Maeda and Matt Owens were serving as co-showrunners. In 2023, Netflix confirmed a second season development, though production was delayed due to the 2023 SAG-AFTRA strike. A second season was officially announced on September 14, 2023. A third season was officially announced in August 2025, with series writer Ian Stokes serving as co-showrunner alongside Tracz.

In a July 2023 open letter, Oda stated that there were numerous scenes he felt "weren't good enough to put out into the world", so the film crew re-shot them. Oda also felt some of Luffy's lines did not feel like the character on paper; however, he changed his opinion after seeing Godoy's performance of them. In an interview with The New York Times, Oda highlighted that the live-action show has more dialogue than the manga as the latter needs more space for illustrations. When asked if he was worried about the One Piece adaptation, given that other similar adaptations have been unsuccessful, Oda said, "thankfully, Netflix agreed that they wouldn't go out with the show until I agreed it was satisfactory. I read the scripts, gave notes and acted as a guard dog to ensure the material was being adapted in the correct way". Costume designer Diana Cilliers was directly influenced by Oda's Color Walk compendiums when creating the show's designs. She made minor changes to the original designs to either "spice up scenes with variation" or to address safety concerns during live-action filming. The adaptation made several structural changes with Oda's approval, such as focusing on Garp and revealing his connection to Luffy much earlier as well as moving Arlong's introduction up and swapping him with Don Krieg's storyline. Maeda commented that they wanted to make Arlong the season's "big bad" and by introducing him at the Baratie they were able to "ramp up towards the last two episodes". He also stated that they wanted Garp as "a more present character" along with the immediate Marine pursuit of the Straw Hats crew "to keep the stakes up and let it feel like it wasn't just a fun adventure where we were meeting different antagonists and different villains and pirates, but there was an actual kind of organized presence and fearsome presence that was behind Luffy and pursuing". Polygon highlighted that increased focus on the Marines means "Koby goes from being a side character to a supporting one immediately" and "changes the framing" of the Marines.

In November 2021, the main cast portraying the Straw Hat Pirates was revealed via a series of wanted posters: Iñaki Godoy as Monkey D. Luffy, Mackenyu as Roronoa Zoro, Emily Rudd as Nami, Jacob Romero Gibson as Usopp, and Taz Skylar as Sanji. Additional supporting cast for the first season includes Morgan Davies as Koby, Ilia Isorelýs Paulino as Alvida, Aidan Scott as Helmeppo, Jeff Ward as Buggy, McKinley Belcher III as Arlong, Vincent Regan as Garp and Peter Gadiot as Shanks. New cast members for the second season include Callum Kerr as Smoker, Julia Rehwald as Tashigi, David Dastmalchian as Mr. 3, Joe Manganiello as Mr. 0 and Lera Abova as Miss All Sunday. Other notable additions include Katey Sagal as Dr. Kureha, Mark Harelik as Dr. Hiriluk, Sendhil Ramamurthy as Nefertari Cobra, and Charithra Chandran as Miss Wednesday. Mikaela Hoover voices Tony Tony Chopper. Manganiello, Abova, Ramamurthy, and Hoover were promoted to main cast for the third season. New cast members for the season include Cole Escola as Bon Clay, Xolo Maridueña as Portgas D. Ace, Awdo Awdo as Mr. 1, and Daisy Head as Miss Doublefinger.

Principal photography began on January 31, 2022, in Cape Town Film Studios and ended on August 22, 2022. Filming for the second season began on July 1, 2024, in South Africa and wrapped on December 15, 2024. Filming for the third season began on November 24, 2025, and wrapped on June 30, 2026.

Sonya Belousova and Giona Ostinelli composed the series score. The soundtrack includes singles such as "Wealth Fame Power" and "My Sails Are Set" featuring Aurora.

On the review aggregator website Rotten Tomatoes, 86% of 63 critics' reviews are positive. The website's consensus reads: "One Piece captures the essence of its beloved source material with a charmingly big-hearted adaptation that should entertain longtime fans as well as patient newcomers." It also received a 95% audience approval rating on Rotten Tomatoes based on over 10,000 reviews. Metacritic, which uses a weighted average, assigned the first season a score of 67 out of 100, based on 22 critics, indicating "generally favorable reviews". On the review aggregator website Rotten Tomatoes, 100% of 29 critics' reviews are positive. The website's consensus reads: "One Piece season two offers higher stakes, a larger scope, and plenty of adventure without buckling under the pressure of being a near perfect live-action adaptation." Metacritic, which uses a weighted average, assigned the second season a score of 80 out of 100, based on 8 critics, indicating "generally favorable reviews".

One Piece topped the weekly global Netflix chart from August 28 to September 3, ranking among the top 10 in 93 countries and at number one in 46 countries, with 140 million hours watched by 18.5 million viewers in its first week. The series ended the year as the most-watched Netflix show (among individual series seasons) during the second half of 2023, with 541.9 million hours watched by 71.6 million viewers in four months. The second season debuted with 16.8 million viewers in its first four days, with 136.2 million hours. It debuted at number 1 on the weekly global Netflix chart, having topped the Netflix charts in 43 countries. It also led to renewed interest in the first season, which returned to the global Netflix top ten chart at number 7, with 3.6 million viewers.