Sushi Izakaya Gaku

1329 S King St, Honolulu, HI 96814, United States
+1 808-589-1329
$$$ Japanese restaurant , Izakaya restaurant , Sushi restaurant
(290 Reviews)
Price Range $100+

Sushi Izakaya Gaku on South King Street in Honolulu serves a dining experience that leans into a more traditional and authentic Japanese approach, focusing heavily on the quality and precision of its sushi and izakaya-style dishes. This full-service restaurant offers a quieter, less tourist-driven atmosphere compared to many other spots in the area, making it a natural choice for those who appreciate carefully crafted sushi without the flash of Americanized rolls.

The setting is casual but attentive, with staff who are welcoming and knowledgeable, lending the place a comfortable neighborhood vibe. The menu highlights a range of authentic items ranging from sashimi specials like uni wrapped in thinly sliced halibut and fresh Japanese mackerel to classic izakaya hot plates such as agedashi tofu with mochi and chicken karaage. There’s a genuine focus on fresh, delicate seafood and well-balanced flavors, which should appeal to sushi purists and fans of traditional Japanese cuisine alike.

Sushi Izakaya Gaku works well for a relaxed dinner where the emphasis is on savoring each piece and exploring seasonal or less common offerings like homemade monkfish liver or miso butterfish. It's a spot that locals and informed visitors tend to lean on for an authentic taste of Japan’s sushi craftsmanship rather than sushi fusion or large, shareable platters. Dinner during the week or on weekends can feel intimate, with enough bustle to keep things lively but not overwhelming.

Visitors who enjoy a methodical and flavor-focused dining experience will appreciate Gaku’s balance of sashimi, nigiri, and small plates alongside thoughtful touches like nonalcoholic drink options and desserts with a Japanese influence. While portions are refined and meant to be savored rather than overwhelming, the variety allows for a personalized meal that can range from light bites to a fuller omakase-style progression.

  • Best for diners who want authentic, skillfully prepared sushi and small plates without the intrusion of fusion trends or heavy American-style rolls
  • Ideal for evenings when you want to focus on fresh fish selections and flaky textures like uni and toro
  • Atmosphere is casual yet focused, perfect for quiet celebrations, date nights, or catching up with friends who appreciate fine Japanese cuisine
  • Service is friendly and attentive, adding to the local, neighborhood feel rather than a formal or tourist-driven experience
Highlights
Has fast service
Popular for
Popular for lunch
Popular for dinner
Good for solo dining
What they serve
Serves alcohol
Serves beer
Serves cocktails
Serves healthy options
Serves small plates
Serves wine
Best for
Serves dinner
Serves dessert
Accessibility
Has wheelchair-accessible entrance
Has wheelchair-accessible seating
Has wheelchair-accessible toilet
Parking
Free of charge street parking
Free parking lot
Paid street parking
Somewhat difficult to find a space

Openings Hours

Checking

Monday

5:00 AM - 10:00 PM

Tuesday

5:00 AM - 10:00 PM

Wednesday

5:00 AM - 10:00 PM

Thursday

5:00 AM - 10:00 PM

Friday

5:00 AM - 10:00 PM

Saturday

5:00 AM - 10:00 PM

Sunday

Closed

290 Reviews
Jeffrey H.

07 Jan 2026

My wife brought me here for my birthday. We got the sashimi plate (for 2). While delicious, it was not enough really for 2 people, so we got a salad, some butterfish and some extra toro. All were delicious, but we definitely had more room for desserts, which were tasty as well. In all, it was a good sushi experience and the restaurant deserves its good reputation.

Joey Sun

04 Dec 2025

Hands down best sushi in Hawaii. Gaku was recommended to us by our scuba diving instructor who is a Japanese sushi chef before moving to Hawaii. Every piece of sushi is prepared so delicately and skillfully. Each cut of the fish is so precise and fine. Also must mention that the spicy tartar is extremely creamy flavorful and yet refreshing. Just overall an amazing experience. Definitely best sushi in Hawaii

Meli

07 Nov 2025

Hidden Gem More traditional style sushi. You won’t find the fancy American rolls here. Everything we ordered was outstanding. Fresh ingredients. Delicious flavors. The service was wonderful- very friendly and attentive staff. They have non-alcoholic beers too! Much appreciated! Highly recommend!

Zane Miyamoto

06 Nov 2025

best sushi meal i’ve had in hawaii — super fresh, non touristy, friendly staff and authentic dishes. including agedashi tofu with mochi, and Hokkaido Uni

Audrey Lim

04 Nov 2025

INCREDIBLE!!! Best otoro I’ve ever had in my life. Not a local but this place was highly praised by my friends from the island. Would love to come back! Quick service, great food and kind servers.

Everett Stenberg

04 Nov 2025

Izakaya Gaku is absolutely wonderful. Tucked just north of Ala Moana, it’s got that city energy without the rush of Waikiki — a perfect balance. This is a high-tier spot. Not Michelin, sure, but it’s not about that — it’s about enjoying the experience, and they've got plenty of that! And as someone just recently stepping into this level of dining, I get now that there’s a whole world above the usual places — and Gaku is a strong entry into that world. The oyster shooters were a standout, and the o-toro? Some of the best I’ve had, hands down. The staff were fantastic — super attentive, and the vibe from the sushi chefs and kitchen crew greeting you with full energy as you walk in or out adds to the whole atmosphere. It’s vibrant, thoughtful, and every detail feels intentional. A real gem.

Ti Liu

21 Oct 2025

From food to service this place knocked it out of the park! Coming from NYC and been to Japan twice I think this is one of the best Japanese restaurants I’ve ever had. Seasoning for each dish was just right. The chef kindly gave me three pieces of dried stingray fin to try. Don’t be fooled by the name. I was surprised by how well seasoned and cooked it was. Moist yet crispy and sweet. It was so good that I ordered a whole plate. Service wise, I dined solo at the counter. Chef and waiting staff were all super attentive but also gave me space to enjoy the food. During our conversation, I casually mentioned how good the mangos in Hawai’i were. The waitress kindly asked the pastry chef to add a few pieces of mango to my dessert. It was such a pleasant surprise! Last but not least, they allow half sizes to some of the dishes. It was a huge positive cause it allowed me to try more dishes!

Kofi Bell

08 Oct 2025

Excellent omakase style, I ordered for myself . Everything was superb. Fish was succulent, fresh, well prepared. Hit on all my expectations. I will definitely come back next time on the island.

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