New York · Sushi · a la carte
Restaurant Yamaguchi
Traditional Sushi / SashimiOmakase SashimiHamachi KamaLong Island Sushi
Family-run Japanese sushi restaurant on Long Island, helmed by Master Chef Yamaguchi for over three decades.
- Price
- ¥¥
- Area
- Port Washington, Long Island
- Chef
- Mr. Yamaguchi

Plate № 2300
About
Restaurant Yamaguchi has anchored the Port Washington dining scene for more than 30 years, a testament to the quiet mastery of its Japanese owner and head chef, Mr. Yamaguchi. Widely regarded as one of the few remaining authentically Japanese-owned and operated sushi restaurants on Long Island, the family-run gem provides exceptional sashimi and sushi in a warm, unhurried setting. The menu highlights classic preparations — sashimi omakase, hamachi kama, spicy tuna rolls — executed with precision. Reservations are encouraged, and the restaurant closes early relative to Manhattan competitors, reflecting its neighborhood character. A true local institution that has retained loyal regulars across generations.
Why it's on Washoku Guide
- One of the last truly Japanese-owned, family-operated sushi restaurants remaining on Long Island.
- Master Chef Yamaguchi brings over 30 years of Japanese sushi mastery to every plate.
- Sashimi omakase reflects classic Japanese technique without the Manhattan price tag.
- Warm, intimate neighborhood setting with reservations encouraged for a personalized dining experience.
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See all →Frequently asked
About Restaurant Yamaguchi
- Is Restaurant Yamaguchi an authentic traditional sushi / sashimi restaurant in New York?
- Yes — Restaurant Yamaguchi is featured in Washoku Guide because it meets our authenticity standard for traditional sushi / sashimi in New York: a kitchen grounded in Japanese technique, ingredients and preparation consistent with Japanese practice, and a focused sushi format.
- Where is Restaurant Yamaguchi located?
- Restaurant Yamaguchi is located at 49 Main St, Port Washington, NY 11050, New York, United States in the Port Washington, Long Island neighborhood.
- Do I need a reservation at Restaurant Yamaguchi?
- Restaurant Yamaguchi does not publish an online reservation link. Walk-ins may be possible, but for popular sushi restaurants in New York we recommend calling ahead.
- What is the price range at Restaurant Yamaguchi?
- Restaurant Yamaguchi sits in the ¥¥ price range — typical for traditional sushi / sashimi of this format in New York.
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