Istanbul · Sushi · a la carte
İoki Nau Karaköy
Nikkei sushiJapanese-PeruvianBosphorus viewJW Marriott
Founded with Japanese head chef Keizo Okitasan, İoki Nau is Istanbul's leading Nikkei restaurant, marrying Japanese precision with Peruvian flavour in a Bosphorus-view setting at the JW Marriott.
- Price
- ¥¥¥
- Area
- Karaköy (Beyoğlu)
- Since
- 2012
- Chef
- Keizo Okitasan
Plate № 13
About
İoki was established in 2012 with the express ambition of bringing authentic Nikkei cuisine to Istanbul, and the founders recruited Japanese chef Keizo Okitasan – described on the brand's own website as a 'well-known and talented Japanese chef' – to lead the kitchen from day one. This commitment to Japanese culinary leadership earned İoki 'Best Asian Cuisine Istanbul' in 2015 and a ranking as TripAdvisor's #1 Japanese restaurant in Istanbul in 2026. The Nau outpost, based at the JW Marriott Istanbul Bosphorus in Karaköy, offers panoramic Bosphorus views alongside a menu of Japanese-Peruvian small plates, inventive rolls, and sashimi tiradito. The İoki family now encompasses multiple concepts and locations, all anchored in the Nikkei tradition established by Chef Okitasan.
Neighborhood & visiting
İoki Nau Karaköy sits in Karaköy (Beyoğlu), one of Istanbul's neighborhoods where authentic Japanese kitchens have taken root. Reservations are available online — for a focused sushi counter this is strongly recommended. Check the posted hours before you go — traditional sushi restaurants often close between service periods.
Why it's on Washoku Guide
- Founded with and led by Japanese chef Keizo Okitasan, giving the kitchen its authentic Japanese foundation.
- TripAdvisor #1 Japanese restaurant in Istanbul in 2026 – Istanbul's most-reviewed Nikkei destination.
- Nikkei cuisine (Japanese-Peruvian) presented in a Bosphorus-view setting inside the JW Marriott.
- Part of a multi-concept group that won 'Best Asian Cuisine Istanbul' in 2015, with a consistent track record.
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Frequently asked
About İoki Nau Karaköy
- Is İoki Nau Karaköy an authentic nikkei sushi restaurant in Istanbul?
- Yes — İoki Nau Karaköy is featured in Washoku Guide because it meets our authenticity standard for nikkei sushi in Istanbul: a kitchen grounded in Japanese technique, ingredients and preparation consistent with Japanese practice, and a focused sushi format.
- Where is İoki Nau Karaköy located?
- İoki Nau Karaköy is located at Karamustafa Paşa Mahallesi, Kemankeş Caddesi No:49/1, JW Marriott Istanbul Bosphorus, 34425 Beyoğlu, Istanbul, Istanbul, Turkey in the Karaköy (Beyoğlu) neighborhood.
- Do I need a reservation at İoki Nau Karaköy?
- İoki Nau Karaköy accepts reservations online. For an authentic sushi experience, especially at a focused counter, booking ahead is strongly recommended.
- What is the price range at İoki Nau Karaköy?
- İoki Nau Karaköy sits in the ¥¥¥ price range — typical for nikkei sushi of this format in Istanbul.
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