Yes: Grand Yavuz Hotel in Çemberlitaş, next to the Sultanahmet area of Istanbul's old city, has a restaurant set inside a cistern from the Byzantine period, which the hotel calls the Historical Cistern. The hotel describes the structure as breathtaking and uses it as a dining room, so you can eat in the cistern itself rather than just walk through it.
Byzantine Constantinople stored its water in covered cisterns and open reservoirs, because the city on the historic peninsula had to hold water brought in from outside. Many of those covered cisterns still survive beneath and between the buildings of the old city. The best known, the Basilica Cistern, is a public museum; others were built over, incorporated into later buildings or turned to new uses.
The Historical Cistern at the hotel belongs to that second group. It is not a sight you queue for with a ticket but a room with a Byzantine past that now serves dinner. That difference shapes the experience: it is small, seated and quiet enough to talk.
The Historical Cistern is a small room of about 30 square meters with capacity for 30 guests, served à la carte. At that size it feels closer to a private dining room than a restaurant hall, and it suits a dinner for two, a small family meal or a group of friends more than a large party. Because space is limited, it is sensible to ask about a table in advance rather than turning up on the night.
The hotel lists a wide range of cuisines for the Historical Cistern, with Turkish and regional dishes alongside Mediterranean and European kitchens:
Drinks include alcoholic and non-alcoholic options, cocktails, regional drinks, teas, coffees and fresh fruit and vegetable juices. The hotel also lists a vegetarian menu among its facilities; if you need a vegetarian or other special meal in the cistern specifically, mention it when you reserve.
No, according to the hotel's own listings these are two different venues: the Historical Cistern is the 30-seat à la carte room in the Byzantine structure, while Sarnic Restaurant is the hotel's main restaurant. The hotel's English page calls it Cistern Restaurant, which is why the two are easily confused. Sarnic Restaurant covers about 216 square meters, seats 165 people, serves breakfast and works as an open buffet with Turkish, regional and Mediterranean food. Its page describes it as blending with the historic atmosphere of Istanbul, but it does not say the buffet room sits inside the cistern.
So if your goal is to eat inside the Byzantine structure, ask for the Historical Cistern by name. Breakfast in the buffet restaurant is a separate experience.
A meal in the Historical Cistern at Grand Yavuz Hotel suits travelers who want one memorable evening in the old city without leaving the hotel afterwards. Typical cases:
The hotel also lists a Historical Cistern Meeting Room among its event spaces, so ask about private use if you are planning an occasion rather than a normal dinner.
The hotel's listing does not publish opening hours, prices or booking rules for the Historical Cistern, so confirm them with the hotel directly. Ask which evenings it is open, whether a reservation is needed, whether guests who are not staying at the hotel can book, and how access works if anyone in your party has limited mobility, since a historic structure may not match the step-free access the hotel lists elsewhere.
The location makes the evening easy to combine with sightseeing: Grand Yavuz Hotel is within walking distance of Hagia Sophia, Topkapı Palace and the Grand Bazaar, so you can spend the day on foot and be at the table without any transport.
To book directly with the hotel, see the room types on the official site and contact the hotel to reserve a table in the cistern.