In the Japanese version of One Piece, Nami is voiced by Akemi Okamura. In the English dub, Nami is voiced by Luci Christian. (en.wikipedia.org)
Japanese Voice Actor: Akemi Okamura

Date of Birth
March 12, 1969 (en.wikipedia.org)
About Akemi
Akemi Okamura (岡村 明美) is a Japanese voice actress best known as the long-running voice of Nami, the navigator of the Straw Hat Pirates in One Piece. She has voiced Nami since the anime’s premiere in 1999, appearing in hundreds of episodes, films, specials, and video games connected to the franchise.
Outside of One Piece, Okamura is known for various anime roles that showcase her ability to portray energetic and confident characters. Her career spans television animation, theatrical films, and video game voice acting. (en.wikipedia.org)
Hometown
Akemi Okamura was born in Tokyo, Japan. (en.wikipedia.org)
Career Highlights
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Nami — One Piece (1999–present): Her most famous role, portraying the Straw Hat Pirates’ navigator across anime, movies, specials, and games. (en.wikipedia.org)
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Hikari “Kari” Kamiya — Digimon Adventure: A major supporting character in the influential Digimon anime franchise. (en.wikipedia.org)
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Cure Sunny / Akane Hino — Smile Pretty Cure!: A prominent magical-girl role in the Pretty Cure franchise. (en.wikipedia.org)
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Xiaoyu Ling — Tekken (anime adaptations and related projects): A well-known character from the Tekken fighting game franchise. (en.wikipedia.org)
Full Current Filmography
Note: Okamura’s voice acting career includes numerous credits across anime, films, and games. The list below reflects documented roles from reference sources and may not be exhaustive.
Anime television (documented credits)
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One Piece — Nami (en.wikipedia.org)
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Digimon Adventure — Hikari (Kari) Kamiya (en.wikipedia.org)
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Smile Pretty Cure! — Akane Hino / Cure Sunny (en.wikipedia.org)
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Cardcaptor Sakura — Yukito Tsukishiro (young version credits) (en.wikipedia.org)
Anime films (documented credits)
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One Piece film series — Nami (multiple theatrical entries). (en.wikipedia.org)
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Digimon Adventure films — Hikari Kamiya. (en.wikipedia.org)
Video games (documented credits)
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One Piece video games — Nami across multiple titles. (behindthevoiceactors.com)
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Digimon games — Hikari Kamiya. (behindthevoiceactors.com)
Critical Reception
Akemi Okamura’s portrayal of Nami is widely praised for balancing the character’s confidence, humor, and emotional depth. Her voice performance has remained consistent for over two decades, making her the definitive Japanese voice associated with the Straw Hat Pirates’ navigator. (en.wikipedia.org)
Copy-paste-friendly sources:
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Akemi Okamura — biography and filmography
https://en.wikipedia.org/wiki/Akemi_Okamura -
Behind The Voice Actors — Akemi Okamura profile
https://www.behindthevoiceactors.com/Akemi-Okamura/
Social Media
No widely documented verified personal social media accounts for Akemi Okamura are listed in the cited sources.
English Voice Actor: Luci Christian

Date of Birth
March 18, 1973 (en.wikipedia.org)
About Luci
Luci Christian is the English voice of Nami in the One Piece anime’s Funimation/Crunchyroll English dub. She is a prolific American voice actress with hundreds of credits across anime, animation, and video games.
Christian has become one of the most recognizable voices in English anime dubbing, known for portraying strong and expressive female characters. Beyond Nami, she is widely recognized for roles such as Ochaco Uraraka in My Hero Academia and Medusa in Soul Eater. (en.wikipedia.org)
Hometown
Luci Christian was born in Hamilton, Ohio, United States. (en.wikipedia.org)
Career Highlights
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Nami — One Piece (English dub): Her most famous role, portraying the Straw Hat Pirates’ navigator across hundreds of episodes, films, and games. (en.wikipedia.org)
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Ochaco Uraraka — My Hero Academia: A major protagonist in the popular superhero anime. (en.wikipedia.org)
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Medusa — Soul Eater: A major antagonist in the supernatural anime series. (en.wikipedia.org)
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Kaname Chidori — Full Metal Panic!: One of the main characters in the action-comedy anime. (en.wikipedia.org)
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Yukari Takeba — Persona 3 (English versions): A notable role in the popular JRPG franchise. (en.wikipedia.org)
Full Current Filmography
Note: Luci Christian has an extensive voice acting career. The list below includes documented credits from major sources and may not be exhaustive.
Anime (English dubbing) — documented credits
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One Piece — Nami (en.wikipedia.org)
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My Hero Academia — Ochaco Uraraka (en.wikipedia.org)
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Soul Eater — Medusa (en.wikipedia.org)
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Full Metal Panic! — Kaname Chidori (en.wikipedia.org)
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Clannad — Nagisa Furukawa (en.wikipedia.org)
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Steins;Gate — Nae Tennōji (en.wikipedia.org)
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Fairy Tail — Zeref (young) (en.wikipedia.org)
Films — selected credits
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One Piece Film: Strong World — Nami (imdb.com)
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One Piece Film: Z — Nami (imdb.com)
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One Piece Film: Gold — Nami (imdb.com)
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One Piece Film: Red — Nami (imdb.com)
Video games — selected credits
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Persona 3 / Persona 3 Reload — Yukari Takeba (behindthevoiceactors.com)
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One Piece Pirate Warriors series — Nami (behindthevoiceactors.com)
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One Piece Odyssey — Nami (behindthevoiceactors.com)
Critical Reception
Luci Christian’s portrayal of Nami is widely praised by fans for capturing the character’s confidence, humor, and emotional moments. Her energetic performance has helped define the character for English-speaking audiences throughout the long-running One Piece dub. (en.wikipedia.org)
Copy-paste-friendly sources:
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Luci Christian — biography and filmography
https://en.wikipedia.org/wiki/Luci_Christian -
IMDb — Luci Christian profile
https://www.imdb.com/name/nm0160055/ -
Behind The Voice Actors — Luci Christian
https://www.behindthevoiceactors.com/Luci-Christian/
Social Media
Verified public accounts:
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X (Twitter): https://x.com/lucichristian
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Instagram: https://www.instagram.com/lucichristian/

I prefer Kerry Williams who voiced Nami. She was better as that pirate navigator in the 4Kids version.