Koiso
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Special Autumn OfferMake your first reservation this autumn to earn a ¥1,500 promo code for your next reservation.
Real Human ConciergeSkip the language barrier. We handle the phone call and secure your table.
Dietary Requests HandledHave allergies or dietary preferences? We'll let the restaurant know.
Support AnytimeOur team is ready whenever you need help.
Why book with byFood?
Japan's #1 food travel platform
Trusted by 50,000+ travelers worldwideCurated by food lovers, for food loversFeatured in CNN, Forbes & NYT
Location
Cuisine
Washoku (Traditional Japanese), Seafood, Izakaya Bar
Average cost
Dinner: US$29.33
Location
Cuisine
Washoku (Traditional Japanese), Seafood, Izakaya Bar
Average cost
Dinner: US$29.33
US$9.77 per reservation
Guest
Adult x1
Date
Add dates
Time
Add times
Request Reservation
Add to Cart
Special Autumn OfferMake your first reservation this autumn to earn a ¥1,500 promo code for your next reservation.
Real Human ConciergeSkip the language barrier. We handle the phone call and secure your table.
Dietary Requests HandledHave allergies or dietary preferences? We'll let the restaurant know.
Support AnytimeOur team is ready whenever you need help.
Why book with byFood?
Japan's #1 food travel platform
Trusted by 50,000+ travelers worldwideCurated by food lovers, for food loversFeatured in CNN, Forbes & NYT
Description
Nestled in the vibrant streets of Nagasaki's Motoshikkuimachi district, Koiso Izakaya offers an immersive culinary journey through the authentic flavors of Japan. This beloved eatery has amassed a loyal following for its remarkable seafood delights, featuring dishes like succulent mackerel, savory eel, and the rare indulgence of whale sashimi. Each dish is a meticulously crafted masterpiece, vibrantly conveying the essence of traditional Japanese cooking.
Koiso's strategic location in the heart of Nagasaki makes it a perfect respite for travelers exploring the city's rich cultural heritage and nearby landmarks. Upon entering, guests are greeted by the harmonious blend of rustic charm and contemporary comfort, creating a welcoming atmosphere that caters to both intimate dinners and lively social gatherings.
The restaurant's dedication to excellence goes beyond its delectable offerings—patrons are treated to exceptional customer service that exemplifies the renowned Japanese hospitality. Staff members are not only friendly and engaging but deeply knowledgeable, eager to guide guests through Koiso's exquisite menu.
Under the passionate stewardship of its esteemed chef, Koiso Izakaya remains a celebration of Japanese gastronomy, delighting both locals and visitors with an unforgettable dining experience. Whether it's a casual night out or a special occasion, Koiso provides a feast for the senses that beckons patrons to return time and again.
MON
19
Today
Dinner
6.00 -
11.30 PM
11.30 PM
6:00 PM - 11:30 PM
TUE
20
Dinner
6.00 -
11.30 PM
11.30 PM
6:00 PM - 11:30 PM
WED
21
Dinner
6.00 -
11.30 PM
11.30 PM
6:00 PM - 11:30 PM
THU
22
Dinner
6.00 -
11.30 PM
11.30 PM
6:00 PM - 11:30 PM
FRI
23
Dinner
6.00 -
11.30 PM
11.30 PM
6:00 PM - 11:30 PM
SAT
24
Dinner
6.00 -
11.30 PM
11.30 PM
6:00 PM - 11:30 PM
SUN
25
Closed
Vegetarian
Not Available
Vegan
Not Available
Halal
Not Available
Pescetarian
Available
Gluten-free
Not Available
Kosher
Not Available
Vegetarian
Not Available
Vegan
Not Available
Halal
Not Available
Pescetarian
Available
Gluten-free
Not Available
Kosher
Not Available
Course changes seasonally, exact dishes can't be confirmed in advance. byFood can communicate any dietary needs to the restaurant when you book.
Free cancellation
Cancel up to 1 week before for a full refund.
No refund within 1 week of the reservation or no-shows.
We strive to be as accurate as possible and keep up with the changing landscape of Japan’s food and travel industries. If you spot any inaccuracies, please send a report.

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