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KOYN Japanese, London, Greater London

KOYN Japanese

4.7
4.7
195 Reviews
£41 and over
Japanese
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.

Make a booking

2 people

19:00


Booked 17 times today
Experiences are available.

Order delivery or takeout

Dining areas

Additional information

  • Dining style
    Fine Dining
  • Price
    £41 and over
  • Cuisines
    Japanese
  • Hours of Operation
    Lunch Daily 12:00–14:15 Dinner Mon–Sat 17:30–22:15 Sun 17:30–22:00
  • Phone number
    020 3535 2000
  • 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.
  • Area
    Mayfair
  • Cross Street
    Grosvenor Square
  • Parking Details
    Street Parking
  • Public Transit
    Nearest Tube Station is Bond Street <br />(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, Takeaway, Vegan, Wheelchair Access, Wine

Experiences

  • LRF - KOYN Omakase Tasting Menu

    £85.00 per person

    1 Jun - 30 Jun 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. SAMPLE MENU KOYN TUNA SENBEI yuzu chilli, white sesame KOYN SALAD soy vinaigrette YELLOWTAIL truffle soy CRISPY SQUID yuzu kosho aioli CHILEAN SEABASS wasabi shiso salsa verde Add beef tenderloin or chicken +15 KOYN SUSHI SELECTION chef’s recommendation YUZU MERINGUE TART yuzu, raspberry Welcome cocktail (or glass of Champagne) on arrival. Service charge excluded.
    LRF - KOYN Omakase Tasting Menu photo

What 195 people are saying

Overall ratings and reviews

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

4.7
4.7 based on recent ratings
  • 4.7Food
  • 4.7Service
  • 4.5Ambience
  • 4.2Value

NoiseModerate

Loved For

  • West End London

    Japanese

195 Reviews
  1. OpenTable Diner

    London

    2 reviews

    5.0

    2 reviews

    Dined 5 days ago

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 4
    Loved the food and the service was excellent. The staff were friendly, knowledgeable about the dishes, attentative and had a great report with eachother. A very enjoyable evening. Thank you

    Is this helpful?

  2. OpenTable Diner

    London

    1 review

    5.0

    1 review

    Dined on 8 June 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    The food, service, tables were amazing. I recommend it

    Is this helpful?

  3. OpenTable Diner

    London

    1 review

    5.0

    1 review

    Dined on 8 June 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    The food it wasn't just tasty, but you could feel the passion which was made with. We'll definitely go again.

    Is this helpful?

  4. MaraT

    London

    11 reviews

    5.0

    11 reviews

    Dined on 6 June 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Koyn is an outstanding restaurant that excels in both food and service. The culinary offerings are top-notch, with dishes that showcase creativity and finesse, crafted from high-quality ingredients. The flavors are well-balanced, and the presentation is visually stunning. The service at Koyn is equally impressive, characterized by attentive and knowledgeable staff who ensure a seamless dining experience. Overall, Koyn sets a high standard for fine dining, delivering a consistently exceptional experience.

    Is this helpful?

  5. MattE

    New York City

    6 reviews

    vip
    5.0

    6 reviews

    Dined on 26 May 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Our server, Polina, was amazing. We had the greatest night Thank you. We will definitely be back again

    Is this helpful?

  6. OpenTable Diner

    Fort Lauderdale

    2 reviews

    1.0

    2 reviews

    Dined on 24 May 2024

    1. Overall 1
    2. Food 2
    3. Service 1
    4. Ambience 4
    Service was terrible. Inattentive service. No knowledge of the food served. One of the sushi pieces were smashed into pieces. Took 2.5 hours. Bad advice given for ordering. Expected more

    Is this helpful?

  7. Greedy

    London

    18 reviews

    vip
    4.0

    18 reviews

    Dined on 22 May 2024

    1. Overall 4
    2. Food 4
    3. Service 4
    4. Ambience 4
    Very good value, excellent location, food was great but not memorable, music too loud (but we are quite old!!)

    Is this helpful?

  8. DajanaK

    London

    16 reviews

    vip
    2.0

    16 reviews

    Dined on 22 May 2024

    1. Overall 2
    2. Food 3
    3. Service 3
    4. Ambience 3
    It was my second time at this restaurant and I must say I am disappointed. Sushi rolls were the smallest I've ever seen in any Japanese restaurant in London, there were tiny. Also yellowtail with truffle was thin and tiny. Champagne glass arrived half full. I know things are expensive in London, but to get such portions for that price is so not worth it. There are many other Japanese restaurants in London that would give you a little more food.

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  9. StefMH

    London

    4 reviews

    5.0

    4 reviews

    Dined on 18 May 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Amazing. The staff member that looked after us yesterday was amazing. I have not had service like that in the UK in a long time. Best sushi we have had. The food was so tasty. Will definitely return and highly recommend.

    Is this helpful?

  10. OpenTable Diner

    London

    3 reviews

    4.0

    3 reviews

    Dined on 11 May 2024

    1. Overall 4
    2. Food 4
    3. Service 5
    4. Ambience 4
    The cocktails were all a disappointment. The sushi was very good but the beef as the mains were a bit distasteful and the portions were small. Other than that everything was really nice

    Is this helpful?

FAQs

You can order delivery directly from KOYN Japanese using the Order Online button. KOYN Japanese also offers takeout which you can order by calling the restaurant at 020 3535 2000.

KOYN Japanese is rated 4.7 stars by 195 OpenTable diners.

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

Make a booking

2 people

19:00


Booked 17 times today
Experiences are available.

Order delivery or takeout

Google Map for KOYN Japanese

38 Grosvenor St, London, Greater London W1K 4QX

Dining areas

Additional information

  • Cross Street
    Grosvenor Square
  • Area
    Mayfair
  • Hours of Operation
    Lunch Daily 12:00–14:15 Dinner Mon–Sat 17:30–22:15 Sun 17:30–22:00
  • 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, Takeaway, Vegan, Wheelchair Access, Wine
  • 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.
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