Kaiyo - Japanese Restaurant in Hamburg

Delicious Japanese food in the heart of Hamburg.

Very tasty ramen and a great atmosphere, but unfortunately it was a bit cramped and the tables were very close together.

Very good, authentic Japanese food like sushi, ramen and fish.

Everything was great, delicious vegan ramen! One point deducted because smoking is allowed outside, which I found distracting while eating. The interior is also really nice!

Delicious food, attractively presented, and friendly service. The noise level at full capacity was a challenge, but the interior was generally nicely decorated.

We spontaneously got a table (for an hour) on Saturday evening, so it's recommended to make a reservation in advance. The food was good, the tonkatsu being the best. The service was friendly and quick. Some of the prices were a bit high. The ambiance is a bit different, with separate, separate areas in the basement, which we liked.

Very nice dinner spot. Tasty Japanese dishes in a cosy atmosphere. Loved that alll the dining spaces were in small separate spaces. Service was excellent.

A wonderful Asian restaurant in the basement. Extremely friendly staff, and the food is simply divine. A must-visit and make a reservation! We'd love to come back!

Update October 2025: We've been here at least five times with friends, family, and colleagues and tried the entire menu. Yesterday I had the vegan Tantanmen Ramen for the first time, and it was SO delicious, with an incredibly good broth. <3 The Nama Chocolate for dessert is a bit heavy for 9 euros and the three small bites, but incredibly good and the perfect portion size for me. I'm making the next reservation right away for in two weeks :D We have a lot of good Japanese restaurants in Hamburg, but Kaiyo is our favorite. Wonderful restaurant with super delicious Japanese food. We were there mainly for brunch - the Japanese breakfast was extremely delicious. The grilled miso salmon and the miso soup were especially my favorite. The kids loved it too 😀 My husband also had a kind of donburi with rice, chicken, and scrambled eggs, which he also really liked. The karaage was also particularly juicy and crispy on the outside; so far, it's the best in all of Hamburg. It wasn't a bargain—we paid €200 for four people, including tip. But the taste and quality were definitely worth the price, and you'd pay even more for a proper kaiseki 😀 Our new favorite Japanese restaurant in Hamburg.

Great Asian restaurant in a great location in Hamburg! Delicious food, a lovely atmosphere, and very friendly service – highly recommended!

Super delicious sushi, exceptional ambiance. Great service. WOW!

Chicken katsu ramen was delicious. Service and vibe is amazing! Cozy.

The former Cöllns Austernstuben have blossomed into an excellent Japanese restaurant 👌

I got poisoning from meat that wasn't cooked properly or was past its best. I got salmonella as a result. My friend also said, "The meat doesn't look good, so I'm not going to get poisoning from it." It's unbelievable that people pay so much for this.

I liked it here. The food is delicious and the atmosphere is nice. We ordered duck breast and ramen. The portion of duck was a bit small, but well prepared. The food is very tasty. The pricing is average. We didn't have to wait long.

Had the duck risotto… simply perfectly delicious. I'm rarely in Hamburg, but I'll definitely be back!

I had the pleasure of experiencing this restaurant yesterday for a birthday, and I have to say I'm so glad I went. The service was extremely good—very friendly, very attentive! And then the food arrived. I had the grilled salmon—what can I say? It was so incredibly delicious. Simply perfectly prepared, and the combination of sweet potatoes and nut butter, including guacamole and lemon, was unbeatable. I highly recommend this restaurant, both here and personally. Thank you for the delicious experience!

A bit more expensive, but definitely worth a visit on any occasion.

The food here isn't bad, but the portions are relatively small and expensive. The value for money isn't right here. The edamame weren't cooked long enough, and the sauces were quite flavorless. We won't be returning.

The sushi here is simply outstanding—fresh, delicious, and of the highest quality! Every roll tastes perfectly prepared. The service is also excellent: the server was very attentive, friendly, and served us with a smile. Highly recommended—I'll definitely be back❤️❤️🫶🫶

We sat outside, so we only briefly saw the beautiful interior. Service was prompt, and the food arrived very quickly after ordering. The quality was excellent!

excellent - a dream of sushi - pure enthusiasm

I miss the free tea, the free drinking water. I didn't ask... But that's how I know Japan... That was Hamburg Japan.

Delicious food and friendly staff right in the heart of Hamburg's city center. The prices are a bit high, but definitely reasonable for what's on offer. I highly recommend the Japanese pork schnitzel, in particular.

I was very pleasantly surprised; I highly recommend it. Great atmosphere, interesting people. The food is delicious. The cocktails are fantastic. Bravo!

The atmosphere is nice, and the service is excellent. The rolls, sushi, and tonkatsu were delicious, but the miso ramen was Chinese, not Japanese, and not very tasty.

We were there for lunch. It was very tasty. Friendly service. Reasonable prices.

Awesome place! Absolutely top-quality sushi – fresh, perfectly prepared, and tastes amazing. The service is incredibly friendly and attentive; nothing is left to be desired. From now on, this is my number one sushi spot!

Super delicious food at fair prices. The food was ready extremely quickly. The interior of the restaurant is absolutely worth seeing. The dessert was a dream.

We spontaneously stopped by for dinner today, sitting outside. Our drink and meal orders were taken quickly, and the service was relatively quick. Overall, it was nice there and the food was good, but unfortunately, the service seemed very arrogant, and we felt like we were intruding. What a shame!

The food is truly excellent. There's nothing to complain about. The service is also very fast and efficient. But that's just it. The friendliness and attentiveness towards guests is lacking. No smiles, very cold. It's a shame. Despite the excellent food, I wouldn't go back, but that's perhaps a matter of opinion.

A fantastic Japanese restaurant in the heart of Hamburg. We discovered it on a city tour and immediately treated ourselves to dinner. The food is truly delicious and the prices are absolutely reasonable. In good weather, you should sit outside; in bad weather, you can admire Hamburg's oldest oyster exchange and the incomparable Art Nouveau tiles inside.

A restaurant with a very pleasant ambiance and typically Japanese, friendly service. The menu is good. The prices seem a bit overpriced. The food isn't outstanding, but it's tasty.

I was to join a group of people, and went in, the waitress looked so confused as if I am here to steal the cutlery and entering inside. Food was below average and service was slow, did not get the sauce I ordered.

This isn’t a real Japanese restaurant I assume? Doesn’t taste authentic Japanese at all

Very tasty food, definitely worth it

We had pork belly, tuna tartar, and ramen. Everything was very deliciously prepared, but each one was different from what you'd normally get. I'm going to say that all of it was made without MSG. I'm fine with Asian cuisine, as it's simply part of the cuisine's repertoire. At Kaiyo, everything tasted very natural. Each ingredient was unique. Tartar usually requires egg yolk. Pork belly requires soy sauce. But I didn't think so, and it still tasted very good. The service was friendly. I like the atmosphere. There's no reason to deduct a star anywhere. I'd be happy to come back.

Food very tasty, you could only pay in cash, very small restaurant

Everything's great! But €7.90 for 0.5 liters of tap water is completely out of proportion! Cheeky!

Great cocktails, delicious food, nice and cozy atmosphere and great service!

Great atmosphere with unfortunately not-so-good service and bland food. The miso fish was amazing – the rest was unfortunately subpar – but then we paid €90 for two – unfortunately, it's not worth it.

Very good veggie ramen! The veggie gyoza were truly delicious! The service was decent, but businesslike and brief. The space was very atmospheric.

The food was delicious! Unfortunately, the service wasn't great... it was rather unpleasant to order anything because the waiter was so unfriendly. At the end, they didn't even say goodbye (with a bill of €250). What a shame.

It was very tasty but unfortunately not very authentic Japanese

Great little japanese restaurant with lots of different options. We went for sushi, which was great quality and accompanied by Japanese inspired cocktails.

Five stars are more than deserved here. The service is incredibly attentive and on the ball. Both the drinks and the food arrived really quickly. There's absolutely nothing to complain about with the food – it was perfect! And the location is truly something special. The prices are more than fair for what you get. You have to try this place if you like Japanese cuisine :).

The lunch was delicious! I thought the price was a little too high, but I still saved it as a good lunch spot :)

Absolutely recommend the sashimi. I had the steak as a starter and the large sashimi plate, along with homemade motchi. I'm thrilled.

We arrived spontaneously (on a weekday) and got a table straight away. Since it was warm, we opted for the large outdoor area. We got our drinks and the menu very quickly. After ordering our food, we didn't have to wait long for our duck breast ramen; it was delicious and fresh. The sushi we ordered was also fresh, delicious, and very attractively presented. The service was good and they asked if everything was okay and if we needed anything else. The restrooms were clean. All in all, a successful evening. Highly recommended.

Fast service. Excellent food. Great atmosphere.

We had lunch on a Sunday, it had a great atmosphere and delicious food, and we enjoyed it very much. I recommend it to everyone.

The restaurant is rather unassuming from the outside, but beautifully decorated inside. The food was delicious, and the service was friendly. However, I had to wait a long time for my food, which is why I'm only giving it 4 stars. Otherwise, I can definitely recommend the restaurant to anyone who enjoys Japanese food.

Very delicious Japanese food. We stopped by during our lunch break and had no trouble getting a table. We'd happily return.

A pretty good Japanese restaurant, stay away from the bronze table (there’s only one), the table’s metallic smell is a bit unbearable. The rests are fine though.

Fresh sushi, we ordered tuna sushi and the duck breast. Super delicious. Chicken with teriyaki is also nice. Ramen is a lot of noodles inside in the portion. The drinks is also fine. Service is friendly.

Delicious food, fast and polite service, it was worth it! We arrived at 5 p.m. and were still able to order the lunch special (which is valid until 5 p.m.). P.S. I had the duck ramen – highly recommended.

Kaiyo offers fresh sushi and a quiet atmosphere for relaxed dining. The quality of the ingredients is consistently good; I particularly like the classic nigiri and maki. The portions are generous, and the flavors are balanced. The service was friendly and polite, although it took a little longer for the food to arrive on our visit. The ambiance is simple and unpretentious, which fits well with the relaxed overall impression. The prices are reasonable for the quality. Overall, a solid restaurant that I would happily recommend, especially if you value quiet dining.

Very good food, attentive and fast service; we'll be happy to come back. You can enjoy excellent Japanese food here!

There was hardly any wait time for the food, which can be both a positive and a negative. Unfortunately, I didn't like it; it was a bland Japanese burger with teriyaki chicken on top. I didn't notice the teriyaki effect, and the meat didn't look particularly tasty.

tastes good and service is very good

How can you claim to be a Japanese restaurant and serve tempura with soy sauce! No point! My husband had his Miso soup and I also wanted a soup. I asked the waiter if I could have one too. He said, I'll ask the kitchen or else I'll give you a bowl and you share your husband's!!!! Nothing really had any taste. The tempura really wasn't good! This is really an overrated restaurant! Avoid!

Zeer fijne Japanse keuken. Als voorgerechtje hadden we de dumplings met kip en deze.waren bij uitstek de lekkerste die we ooit hadden gegeten. Ook onze voorgerechten waren uiterst smaakvol en verfijnd. De.bediening was eerder kordaat maar misschien typisch voor een Japans restaurant

Super good ramen, real quality.

The food was absolutely amazing and the sparking sake was the best I’ve had outside of Japan

Incredible sushi and ramen – truly a hidden gem in Hamburg! Everything we tried was bursting with flavor, fresh, and beautifully presented. The sushi was top quality — melt-in-your-mouth good — and the ramen was rich and comforting, exactly what you’d hope for. The ambiance is stylish yet cozy, and the staff were attentive and kind. A perfect spot for a Japanese food lover. I’ll definitely be coming back!

Friendly and prompt staff. Comfortable rooms—unfortunately, in the basement.

It was a really nice place and atmosphere. We ordered a delicious starter and the sashimi was nice too. The tonkatsu was very delicious. Perhaps a bit more of the tonkatsu sauce would be appreciated. The only thing I would criticise was the fact that they served it with jasmine rice and not Japanese short-grained rice.

Great food, very friendly service, great atmosphere.

The chef's choice and a premium sake are what we truly enjoy, topped off by excellent service, when we want to treat ourselves to something special. Guests are treated with great care, and everything, combined with the ambiance, makes for a pleasant evening for us. We don't come to Kaiyo often, but we always enjoy it. Advance reservations are recommended.

The food was delicious. Unfortunately, we didn't get any napkins. The teapot was extremely small. I suspect it was 150 ml. The mochi was frozen.

Very tasty food, friendly staff and nice interior. Totally recommend. --- we came here multiple times now and every time it's a really good place to go to.

Very delicious! We really enjoyed it.

We had ramen for lunch, and it was incredibly delicious. We had a great outdoor seating area, and the service was friendly and attentive. The selection is huge (sushi, ramen, etc.), and the portions are definitely filling! We highly recommend it. 🤙

Ramen were ok. Tasted like an european-localized version, this could be a good place to begin with, if you’re not familiar with Japanese food. Misinformation in menu - Kimchi is Korean, not Chinese.

The food was sensational! Simply an explosion of flavors! The prices were perfectly reasonable, the portions were large, the staff was friendly, and the atmosphere was great. It's within walking distance of the town hall.

Very tasty, good service, very nice ambience :)

We had another wonderful evening with delicious food. Highly recommended 🌺

Super delicious food and a wonderful atmosphere. I highly recommend it.

Absolutely rustic atmosphere and great food.

The food is delicious, the waiters are very pretty😁

We went there for dinner one weekday evening. There was a huge selection of Japanese food. The service was very attentive. The food we had was delicious, and the proximity to the town hall makes it even more attractive. You can even sit outside in the summer. It's just a traffic-calmed, single-lane road that runs past, making it very quiet outside.

Nice service and good food. Big portion of Ramen. Very beautiful restaurant. Cost seats. We booked a table but they have a lot of seats during the week. Could try it spontaneously. Will return and try other dishes. Quick service !

The only things that my friend and I was surprised (negatively) is the matcha soju, it sound so fancy until it is serve with wine glass and it taste so so sweet without any alcohol taste and it was cold. Sorry it is because i am not translated fully the menu and did not ask properly 😅 However, I always like the wide variety of food options they have. They have the finest salmon belly and different type of standard Japanese food eg ramen curry rice, sashimi. And I especially like the way they use their time to make the food presentable and with many tiny attention. I like to recommend their place to small business dinner as well, so people taste something different fancy yet affordable price. One thing I hope they could improve is having English menu or more photo for people who are not familiar with Japanese cuisine name.

- Far from authentic Japanese food, operated by Chinese/Vietnamese - Food was not great. Pork cutlet was overcooked and tough - Maki rice was not suitable sushi rice - Place had a funny smell - charged 3 Euro for the glass of still water - misrepresentation of some dish. I.e. Kimchi is not Chinese cabbage.

I highly recommend the lunch menu. A great selection at reasonable prices. The service is attentive but unobtrusive. On my last visit, there was a somewhat unpleasant smell when I walked in, so I deducted one star for the ambiance. Overall, though, I really enjoy coming to Kaiyo.

On the recommendation of the hotel, we had dinner at Kaiyo: a wonderful culinary experience, certainly one of the two or three best Japanese restaurants we visited in Europe! Charming and efficient service. We will come back to this before leaving Hamburg.

Increíble experiencia. Rara vez hemos experimentado una comida japonesa así. ¡Incluso en Japón! Volveremos allí seguro. Nos encantó.

Nice ambience, creative combination of European and Japanese cuisine. Warm towels in advance were a nice gesture. The food was good, only the tonkatsu was a bit dry and the entrecote had a thick tendon. Given the prices, that shouldn't happen. Miso soup and Japanese curry without coconut milk would be nice.

The atmosphere is very nice, the food came quickly and was adequately prepared as far as the meat and fish were concerned. Unfortunately not authentic Japanese cuisine, sauces tasted like instant fried sauce, especially the teriyaki sauce is not recommended. The cola was no longer carbonated and tasted watered down. It's a shame, we were a bit disappointed with the quality of the food.

A great restaurant with a very good menu in “historic” premises. All the dishes we ordered were “over the top”. We would love to come back.

I have been for a couple of lunches and dinners to this place. Highly recommend for Japanese cuisine. One of the kindest services. Thank you guys.

A really, really nice place. Location, staff and food perfect

Wonderful location. Lots of choice, something for everyone. I can highly recommend the homemade jasmine iced tea. We ordered ramen, it came very quickly and was extremely tasty. Would love to come back.

The taste is just mediocre - no special aroma. However, the ambience is very nice. Unfortunately, in the end the waitress became quite pushy as soon as you didn't want to order another drink - it felt like: "Then please pay if you don't want anything more." You can easily get a table without a reservation.

Were eating Japanese for the first time. That's why we got a little advice. The nice lady explained to us very patiently what was what and recommended one or two things to eat. We had ramen and salmon, and before that, sushi and duck. Everything was very tasty. Thank you very much, we will definitely come back when we are back in town.

Wow! Really authentic sushi like in Japan. Also a truly heavenly duck ramen. One of the top spots for Japanese food in Hamburg.

This is the best restaurant in Hamburg!

Excellent food and menu. The staff is incredibly friendly and helpful. Full marks – perfect for couples or families with small babies.

We had an excellent meal at this restaurant. The menu offers options for all tastes, and the service was kind and efficient. Families with small children aren’t always warmly welcomed at restaurants, but here we felt truly welcomed. We ordered ramen, tonkatsu, and sushi – all of them were excellent! The price was ok for japonese food. I would definitely come back more often. They really deserve 5 stars here in the reviews.

Mega!!! Very nice restaurant with super nice service - I would say the best ramen in Hamburg🥹