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KOYN Thai - Thai Cuisine, Mayfair London - KOYN Thai, London, Greater London

KOYN Thai

4.4 (83)
£26 to £40
Thai
38 Grosvenor St, London, Greater London W1K 4QA

Make a booking

2 people
23:00
Booked 4 times today
Experiences are available.

About this restaurant

  • Good for special occasions
  • Fancy
  • Hot spot
A multifaceted Asian dining destination in the heart of Mayfair. Discover our fiery Thai dining and our Izakaya style KOYN bar.

Something exciting is coming to the cosmos of KOYN.
In June, our subterranean dining space will transform into KOYN Thai in collaboration with Bangkok born chef, Rose Chalalai Singh. The new restaurant will celebrate the flavours, spices and cooking techniques of Thailand.

KOYN Thai will sit underneath its Japanese counterpart, in the basement of the Grosvenor Street Residence, offering a menu that captures the essence of Bangkok, Chiang Mai, Phuket, and the central provinces.

Rose, known for her Parisian private dining restaurant, Rose Kitchen, and having catered for
some of the world’s greatest fashion and art talent - from Vogue Paris fashion events to The
Gagosian - will make her London debut at KOYN Thai.

Dining areas

Additional information

  • Dining style
    Casual Elegant
  • Price
    £26 to £40
  • Cuisines
    Thai
  • Hours of Operation
    Lunch Tue–Sat 12:00–14:30 Dinner Mon–Sat 17:30–22:30 Sun 17:30–21:30
  • 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 02035352000 or reservations@koynrestaurants.com for further information.
  • Location
    38 Grosvenor St, London, Greater London W1K 4QA
  • Area
    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, Full Bar, Gluten-free Options, Non-Smoking, Private Room, Vegan, Wheelchair Access, Wine

Experiences

  • West End: Feast Of KOYN Thai

    £88.00 per person

    1 May 2025 - 30 Jun 2025
    Curated under the guidance of Chef Rose Chalalai Singh, this menu is a celebration of Thailand’s rich culinary heritage. Drawing inspiration from diverse regional traditions, each dish highlights bold, vibrant flavours and authentic preparations, offering a refined yet soulful journey through Thai cuisine. Feast of KOYN Thai (2 people minimum) Menu THAI FISH CAKES sweet basil, nam jim GRILLED PORK NECK Duke of Berkshire pork, jiew sauce BLACK PEPPER CRISPY SQUID lemongrass, garlic YELLOW CRAB CURRY jasmine rice SEABASS PAD CHA green Thai pepper, krachai, sweet basil & chilli LONG GREEN BEANS egg, crispy shallots BEEF PAD SEE EW +10pp flat rice noodles, mushroom soy & mixed greens OUR MANGO STICKY RICE MANGO panna cotta, sticky rice & coconut sorbet Classic Wine Pairing £50pp | Prestige Wine Pairing £85pp
    West End: Feast Of KOYN Thai photo

  • West End: Taste Of KOYN Thai

    £68.00 per person

    1 May 2025 - 30 Jun 2025
    Curated under the guidance of Chef Rose Chalalai Singh, this menu is a celebration of Thailand’s rich culinary heritage. Drawing inspiration from diverse regional traditions, each dish highlights bold, vibrant flavours and authentic preparations, offering a refined yet soulful journey through Thai cuisine. Taste Of KOYN Thai Menu (2 people minimum) CHICKEN SATAY homemade cashew sauce, cucumber & red onion vinegar PAPAYA SALAD toasted coconut, prawn BLACK PEPPER CRISPY SQUID lemongrass, garlic RED PRAWN CURRY pea aubergine, sweet basil MORNING GLORY fermented soy beans BEEF PAD SEE EW flat rice noodles, mushroom soy & mixed greens 12-HOUR SLOW-COOKED LAMB SHANK MASSAMAN +14pp cashew nuts, crispy shallots THAI SPICED NUT BRITTLE baby banana, caramel ice cream Classic Wine Pairing £50pp | Prestige Wine Pairing £85pp
    West End: Taste Of KOYN Thai photo

Menu

View menu on restaurant's website

What 83 people are saying

KOYN Thai reviews from people who’ve dined at this restaurant. Based on recent rating.

Overall ratings and reviews

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

4.4
4.4 based on recent ratings
  • 4.5Food
  • 4.5Service
  • 4.3Ambience
  • 4.1Value

Noise • Moderate

Loved For

  • London

    Thai

Review summary

AI-generated from verified diner reviews
KOYN Thai delights with "authentic Thai cuisine" and "amazing" tasting menus. Guests praise the "great ambiance" and "very good" service. The decor provides a romantic setting, and the cocktails are "fantastic." Despite some mixed experiences, the restaurant is recommended for its "delicious" food and "extraordinary" staff.

83 Reviews

  1. Arthur VIP

    London1 review

    3.0

    Dined 7 days ago

    1. Overall 3
    2. Food 5
    3. Service 4
    4. Ambience 1
    We were the only table in the restaurant with an influencer filming everything and commenting at another table. We have also asked if it’s possible to make a dish less spicy, but were told that they can’t do any adjustments Really bad experience

    Is this helpful?

  2. Stefan

    BW3 reviews

    5.0

    Dined on 25 April 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 4
    Authentische Gerichte, schön auf dem Teller präsentiert, sensationeller Geschmack und sehr freundliche Bedienung

    Is this helpful?

  3. mark

    London1 review

    5.0

    Dined on 9 April 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Got a table last minute - staff and food excellent. Will be back. I Shouldn’t have worn shorts but they were happy to serve us. Excellent !!!!

    Is this helpful?

  4. Ricardo VIP

    London1 review

    5.0

    Dined on 29 March 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    We had the tasting menu and it was amazing! The decor and service was outstanding as well

    Is this helpful?

  5. sallie

    London4 reviews

    3.0

    Dined on 29 March 2025

    1. Overall 3
    2. Food 4
    3. Service 4
    4. Ambience 2
    Restaurant was empty apart from our table so limited atmosphere. There were more staff than guests & they were helpful but we felt like we needed to eat quickly & leave. Food good but expensive for what we had.

    1 person found this helpful

  6. Amanda

    London3 reviews

    3.0

    Dined on 25 February 2025

    1. Overall 3
    2. Food 4
    3. Service 1
    4. Ambience 4
    Food was very good, service was very poor. Not many people eating and not many staff. The staff were nice but very slow, and drinks took ages to come. Also when I went into the women’s toilets the cupboard door was open with all the cleaning chemicals in.

    Is this helpful?

  7. Sid

    London2 reviews

    3.0

    Dined on 18 February 2025

    1. Overall 3
    2. Food 3
    3. Service 4
    4. Ambience 3
    An okay experience overall, nothing memorable or special. Cocktails were disappointing.

    Is this helpful?

  8. Furqan

    London11 reviews

    4.0

    Dined on 14 February 2025

    1. Overall 4
    2. Food 4
    3. Service 5
    4. Ambience 5
    A great evening in Valentines. Service was very good. Menu explained and felt comfortable. Decor and setting excellent for a romantic dinner. Would gave gift. 5 star however, the main which we had the Seabass wasn’t as good as the starters. Overall lovely place for a dinner with your partner

    Is this helpful?

  9. John

    Birmingham1 review

    5.0

    Dined on 31 January 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Taster menu was fantastic, worth paying supplement for lamb shank.

    Is this helpful?

  10. Corinna

    London12 reviews

    5.0

    Dined on 30 January 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Great ambiance as soon as you walk in. Had drink in the bar, very well stocked and knowledgable staff. From here we could see into the Japanese kitchen, though we were having Thai so we headed down to the Thai restaurant area downstairs. Again, there’s an open kitchen and a great feel to the room. Food was delicious! The serving staff were lovely, thoroughly enjoyed our evening!

    Is this helpful?

FAQs

KOYN Thai is rated 4.4 stars by 83 OpenTable diners.

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

  1. Home
  2. United Kingdom
  3. London
  4. West End London
  5. Mayfair

Make a booking

2 people
23:00
Booked 4 times today
Experiences are available.
Google Map for KOYN Thai

38 Grosvenor St, London, Greater London W1K 4QA

Dining areas

Additional information

  • Cross Street
    Grosvenor Square
  • Area
    Mayfair
  • Hours of Operation
    Lunch Tue–Sat 12:00–14:30 Dinner Mon–Sat 17:30–22:30 Sun 17:30–21:30
  • Price
    £26 to £40
  • Cuisines
    Thai
  • Dining style
    Casual Elegant
  • 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, Full Bar, Gluten-free Options, Non-Smoking, Private Room, 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 02035352000 or reservations@koynrestaurants.com for further information.
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