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.
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.
More authentic sushi in Istanbul
See all →Other authentic cuisines in Istanbul
See all →Keep exploring




