A Journey Through the Duality of Japanese Cuisine.


KOYN, nestled in the heart of London’s Mayfair, is a modern Japanese restaurant offering an exquisite journey through the duality of Japanese cuisine. Housed in a historic building that once held the US Embassy and Canadian High Commission, KOYN celebrates the balance between tradition and innovation. Executive Chef Rhys Cattermoul curates a menu that marries the timeless art of Japanese cooking with a contemporary twist. Guests can savor a symphony of umami flavors, achieved through meticulous technique and the freshest, locally sourced ingredients. The restaurant’s ground floor offers a refined dining experience, featuring classic favorites from the sushi bar, robata grill, and kitchen creations.

A Versatile Dining Experience

Downstairs, KOYN’s bar presents an Izakaya-style gastropub experience, offering a more casual vibe. Here, patrons can share small plates bursting with flavor, alongside creative cocktails and a wide selection of sake. This vibrant setting contrasts with the refined upstairs dining, creating a unique blend that reflects Japan’s balance between contrasting forces. KOYN’s approach to Japanese cuisine and its distinct ambiance make it a prime destination for sophisticated dining and lively after-work gatherings alike, offering an unforgettable taste of modern Japan.

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Open Hours

Monday12:00 PM10:45 PM
Tuesday12:00 PM10:45 PM
Wednesday12:00 PM10:45 PM
Thursday12:00 PM10:45 PM
Friday12:00 PM10:45 PM
Saturday12:00 PM10:45 PM
Sunday12:00 PM10:45 PM
Closed now. See you soon!