KOYN Japanese

4.5

231 Reviews

£41 and over

Japanese

Make a reservation

2 people

Dec 23, 2024

7:00 PM

Booked 29 times today

Experiences are available.

Good for special occasions
Good for business meals
Charming

A multifaceted Asian dining destination in the heart of Mayfair. Discover our contemporary Japanese dining and our Izakaya style KOYN bar.

KOYN Japanese is located on our ground floor of Mayfair's Grosvenor Square and is a celebration of the timeless artistry of Japanese cuisine elevated by a contemporary approach.
The kitchen led by Executive Chef Rhys Cattermoul presents a menu highlighting the true essence of each ingredient, guided by a philosophy that embraces innovation while respecting tradition, to showcase the broad spectrum of Japanese cuisine through rich umami flavours and locally sourced produce.

KOYN's philosophy places value on subtlety and detail through an amalgamative lens where art, design, and textile traditions meet culinary craftsmanship.

Order delivery or takeout

Dining areas

Additional information

Dining style
Fine Dining
Price
£41 and over
Cuisines
Japanese
Hours of operation
Lunch Daily 12:00 pm–2:15 pm Dinner Mon–Sat 5:30 pm–10:15 pm Sun 5:30 pm–10:00 pm
Phone number
020 3535 2000
Website
http://www.koynrestaurants.com/
Payment options
AMEX, Mastercard, Visa
Dress code
Smart Casual
Executive chef
Rhys Cattermoul
Catering
Kindly note we do not offer outdoor catering.
Private party facilities
Please contact the restaurant directly on 020 3535 2000 or reservations@koynrestaurants.com for further information.

Location
38 Grosvenor St, London, Greater London W1K 4QX
Neighborhood
Mayfair
Cross street
Grosvenor Square
Parking details
Street Parking
Public transit
Nearest Tube Station is Bond Street (Davies Street and turn right on Grosvenor Street)
Additional
Banquet, Bar/Lounge, Beer, Cocktails, Counter Seating, Delivery, Full Bar, Gluten-free Options, Non-Smoking, Private Room, Takeout, Vegan, Wheelchair Access, Wine

Experiences

Omakase Feasting Menu
£108.00 per person
Nov 1, 2024 - Dec 30, 2024
Our dining destination and contemporary izakaya features Japanese cuisine that is authentic with a modern influence. Executive Chef Rhys Cattermoul showcases a broad spectrum of Japanese cuisine through delicate umami flavours and responsibly sourced ingredients. Leave it to us whilst you experience the Japanese tradition at its very best at KOYN, making every meal a celebration. Enjoy the festive season with our carefully curated Omakase Feasting menu. Kindly note the menu is available for a minimum of 2 guests.
Omakase Festive Menu
£88.00 per person
Nov 1, 2024 - Dec 30, 2024
Our dining destination and contemporary izakaya features Japanese cuisine that is authentic with a modern influence. Executive Chef Rhys Cattermoul showcases a broad spectrum of Japanese cuisine through delicate umami flavours and responsibly sourced ingredients. Leave it to us whilst you experience the Japanese tradition at its very best at KOYN, making every meal a celebration. Enjoy the festive season with our carefully curated Omakase Festive menu. Kindly note the menu is available for a minimum of 2 guests.
Nik Eksted & Koyn
£98.00 per person
Jan 22, 2025 only
A one-night-only collaboration at KOYN Executive Chef Rhys Cattermoul joins forces with Michelin-starred Nordic chef Niklas Eksted, for an exclusive 6-course menu drawing from Eksted Nordic gastronomy and open-fire cooking and Cattermoul approach to Japanese izakaya dining. Welcome Drink Oyster Flambadou, Raw Beef with Vendace Roe and Crusade Nik Eksted Tuna Tartare, Black Garlic Boy & Bone Marrow Rhys Cattermoul Birch-Fired Trout, Mangalica Pork with Grilled Vegetable Butter Nik Eksted Chilean Seabass, Wasabi Shiso and Salsa Verde Rhys Cattermoul Juniper grilled deer, Beetroot and Salted Plum Nik Eksted Chocolate Wart, whiskey Soy and Meringue, seared with charcoal Rhys Cattermoul

What 231 people are saying

Overall ratings and reviews

Reviews can only be made by diners who have eaten at this restaurant

4.5

4.5 based on recent ratings

4.6Food
4.6Service
4.4Ambience
4.1Value

Noise • Moderate

Review summary

AI-generated from verified diner reviews

KOYN Japanese offers a refined dining experience with "great food and excellent service." Known for its lively atmosphere and prime location, it excels in creative dishes crafted from high-quality ingredients. Though some find portions small, the "presentation is visually stunning" and the staff attentive, ensuring a memorable visit.

232 Reviews

A
Adela
London
1 review
5.0
1 review
Dined today
1. Overall 5
2. Food 5
3. Service 5
4. Ambience 5
Excellent service and food. Really enjoyed the Chilean Seabass and the crispy squid.
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E
Eris
London
1 review
5.0
1 review
Dined today
1. Overall 5
2. Food 5
3. Service 5
4. Ambience 5
Delicious food Amazing staff Nice atmosphere Will be back soon
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W
Wisam
London
1 review
3.0
1 review
Dined 6 days ago
1. Overall 3
2. Food 4
3. Service 2
4. Ambience 2
Readable food, nothing special. The service is poor and lacks refinement.
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G
Gail
Bedfordshire
2 reviews
3.0
2 reviews
Dined on December 14, 2024
1. Overall 3
2. Food 3
3. Service 2
4. Ambience 3
The staff who greeted us and served us in the restaurant were not warm and acted confused that we were there for a table booking however the team at the bar were great. We had the tasting menu which was mostly delicious except the tempura squid which had so much batter you couldn’t taste the squid. Tempura should be light and this was more this pub batter. We were also surprised that for £216 they served a small desert to share, no bigger that a single persons portion. It was a shame as it tainted the end of the meal and felt like poor value.
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A
Alexandra
London
3 reviews
4.0
3 reviews
Dined on December 7, 2024
1. Overall 4
2. Food 3
3. Service 4
4. Ambience 4
The generic overpriced Asian restaurant, very limited menu but nice inside
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k
katy
London
56 reviews
3.0
56 reviews
Dined on December 5, 2024
1. Overall 3
2. Food 3
3. Service 4
4. Ambience 3
Portions are Very Very small Specifically lamb dish 3 the smallest piece of lamb for £42 Sushi was half of the size of the sushi we had to have elsewhere… seriously tiny pieces We wouldn't rush back
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a
ali
London
2 reviews
4.0
2 reviews
Dined on December 5, 2024
1. Overall 4
2. Food 4
3. Service 5
4. Ambience 3
Good food and excellent service, what more can one ask for
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K
Khalid
London
1 review
5.0
1 review
Dined on December 2, 2024
1. Overall 5
2. Food 5
3. Service 4
4. Ambience 5
Very well mannered staff, Polite, Attentive, Considerate. Delicious food as well.
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M
Meltem
VIP
San Francisco
17 reviews
3.0
17 reviews
Dined on December 2, 2024
1. Overall 3
2. Food 4
3. Service 2
4. Ambience 2
I think food was good… atmophere was plain and formal The cutest one was the little car decorated outside inside plain for a holiday season… service was pretty bad.. one lady was looking all tables, we had to chase them asking for more sparkling water many many times.. they have to work On that hiring more people and attentive attitude. But this is not her fault, one server is not enough…
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B
Barry
VIP
London
5 reviews
5.0
5 reviews
Dined on November 30, 2024
1. Overall 5
2. Food 5
3. Service 5
4. Ambience 5
A really excellent evening....food ans service exceptional
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FAQs

KOYN Japanese offers takeout which you can order by calling the restaurant at 020 3535 2000.

KOYN Japanese is rated 4.5 stars by 231 OpenTable diners.

Yes, you can generally book this restaurant by choosing the date, time and party size on OpenTable.

Make a reservation

2 people

Dec 23, 2024

7:00 PM

Booked 29 times today

Experiences are available.

Order delivery or takeout

38 Grosvenor St, London, Greater London W1K 4QX

Dining areas

Additional information

Cross street
Grosvenor Square
Neighborhood
Mayfair
Hours of operation
Lunch Daily 12:00 pm–2:15 pm Dinner Mon–Sat 5:30 pm–10:15 pm Sun 5:30 pm–10:00 pm
Price
£41 and over
Cuisines
Japanese
Dining style
Fine Dining
Dress code
Smart Casual
Parking details
Street Parking
Public transit
Nearest Tube Station is Bond Street (Davies Street and turn right on Grosvenor Street)
Payment options
AMEX, Mastercard, Visa
Executive chef
Rhys Cattermoul
Additional
Banquet, Bar/Lounge, Beer, Cocktails, Counter Seating, Delivery, Full Bar, Gluten-free Options, Non-Smoking, Private Room, Takeout, Vegan, Wheelchair Access, Wine

Website
http://www.koynrestaurants.com/
Phone number
020 3535 2000
Catering
Kindly note we do not offer outdoor catering.
Private party facilities
Please contact the restaurant directly on 020 3535 2000 or reservations@koynrestaurants.com for further information.

KOYN Japanese

Make a reservation

Order delivery or takeout

Dining areas

Additional information

Experiences

Omakase Feasting Menu

Omakase Festive Menu

Nik Eksted & Koyn

Menu

What 231 people are saying

Overall ratings and reviews

Review summary

FAQs

Does KOYN Japanese offer delivery through OpenTable or takeout?

How is KOYN Japanese restaurant rated?

Is KOYN Japanese currently accepting reservations?

Make a reservation

Order delivery or takeout

Dining areas

Additional information