These are the bars in Istanbul that I know of that sell craft beer (or at least beer that isn’t solely big Turkish or international brand lager). There are depressingly few entries so far, so I will gladly add to this list if you let me know of any other candidates.
The Bosphorus Brewing Company
Yildiz Posta Caddesi, Gayrettepe
The BBC feels a bit like an up-market British pub, except that it’s in Gayrettepe. Beers that they brew onsite include a decent IPA (Istanbul Pale Ale, obviously) and a stout (Karbon). You can also eat British-style pub food. I thought that the food was a bit pricey, and the beer isn’t amazingly cheap either at 16TL-18TL, but being able to get a draft IPA is precious.
Cevdet Paşa Cd No:119, Bebek
Taps are the oldest microbrewer in Turkey and mostly sell their beer at this restaurant and bar on the waterfront in Bebek – typically four or so options are available. My experience here involved brutally bad EDM music at loud volumes; your mileage may vary.
Milli Reasürans Çarşısı D:12, Nişantaşı
This remains on the list as this bar is recommended by The Internet and Mr. Google, but on this occasion they are sadly wrong in their convictions. Poor atmosphere and only Tuborg on draft.
United Pub, Beşiktaş
Köyiçi Meydan Sok. No: 10, Beşiktaş
This is a decent bar in the heart of Beşiktaş, offering a good variety of bottled beers and Weihenstephan on draft.
Belfast Irish Pub, Kadıkoy
Dr.Esat Işık Cad.No:28/1 Kadıköy
There is a pretty broad selection of bottled imported craft beer available here, albeit slightly pricey.
Moda Caddesi No. 60, Kadıköy
Ayı means ‘bear’, which brings to my mind an image of burly gay men, but I believe this is not the intended effect. Instead, you should think of an ursine- and wood-themed bar, quite trendy, with a decent selection of bottled beers and Weihenstephan on draft. It’s definitely a bar worth checking out if you’re on the Asian side of the city.
Port Shield, Sultanahmet
Ebusuud Caddesi, Sultanahmet (next to the Gulhane tram stop)
This is a pretty dingy British-style pub in the heart of the tourist district. They have a menu offering about 30 imported bottled beers. A Brewdog 5am Saint is 26TL, and a nip of single malt whisky is 40TL – 50TL.