| Bucoleon Palace Hotel Istanbul | Standard | 11 | Old City |
 | Budo Hotel Istanbul | 3.0 star rating | 46 | Old City |
 | Bunk Taksim Hotel Istanbul | Boutique | 45 | New City |
| Burak Suren Hotel Istanbul | Aparthotel 1* | 3 | Old City |
 | Burckin Suites Hotel Istanbul | Boutique | 39 | Old City |
 | Burgu Arjaan By Rotana Hotel Istanbul | 5.0 star rating | 163 | Asian Side |
 | Business Life Hotel Istanbul | 4.0 star rating | 33 | New City |
 | Buyuk Keban Hotel Istanbul | 3.0 star rating | 148 | Old City |
 | Buyuk Paris Hotel Istanbul | 3.0 star rating | 97 | Old City |
 | Buyuk Sahinler Hotel Istanbul | 4.0 star rating | 132 | Old City |
 | By Murat Crown Hotel Istanbul | Boutique | 29 | New City |
 | By Murat Galata Hotel Istanbul | Boutique | 22 | New City |
| By Murat Royal Hotel Istanbul | Boutique | 17 | New City |
 | Byotell Hotel Istanbul | 5.0 star rating | 182 | Asian Side |
| By Pera Suites Hotel Istanbul | Apartment 1st Category | 11 | New City |
 | Byznatium Comfort Hotel Istanbul | Boutique | 20 | Old City |
 | Carina Park Suites Nisantasi Hotel Istanbul | 4.0 star rating | 30 | New City |
 | Carlton Hotel Istanbul | 4.0 star rating | 75 | Old City |
 | Cartoon Hotel Istanbul | 4.0 star rating | 127 | New City |
 | Casa Di Bava Istanbul Hotel | Aparthotel 4* | 12 | New City |
 | Casa Mia Hotel Istanbul | Boutique | 22 | Old City |
| Caupo Hostel Hotel Istanbul | Hostel 3* | 9 | Old City |
 | Celal Aga Konagi Hotel Istanbul | 5.0 star rating | 87 | Old City |
 | Celal Sultan Hotel Istanbul | Boutique | 55 | Old City |
| Celine Hotel Istanbul | 3.0 star rating | 14 | Old City |
 | Centrum Hotel Istanbul | Boutique | 49 | Old City |
 | Cevahir Hotel Istanbul-Asia | 5.0 star rating | 198 | Asian Side |
 | Cezayir Suites Hotel Istanbul | Standard | 6 | Ataturk Airport Istanbul |
| Chakra Suites Hotel Istanbul | 4 Keys | 11 | New City |
 | Chakra Suites Levent Hotel Istanbul | Boutique | | Old City |
 | Charming Vezir Hotel Istanbul | 3.0 star rating | 24 | Old City |
 | Cheers Midtown Hostel Hotel Istanbul | 3.0 star rating | 11 | Ataturk Airport Istanbul |
 | Cheya Besiktas Hotel & Suites Istanbul | 3.0 star rating | 49 | New City |
 | Cihangir Ceylan Suite Hotel Istanbul | Aparthotel 3* | 25 | New City |
| Cihangir Hotel Istanbul | 3.0 star rating | 51 | New City |
 | Ciragan Palace Kempinski Istanbul Hotel | 5.0 star rating | 313 | New City |
 | City By Molton Hotel Istanbul | 4.0 star rating | 76 | New City |
 | Citycenter Hotel Istanbul | 4.0 star rating | 90 | New City |
| Cityloft Suites Atasehir Hotel Istanbul | Boutique | 36 | New City |
| City One Hotel Istanbul | 4.0 star rating | 5 | Asian Side |
 | City Wall Hotel Istanbul | 4.0 star rating | 30 | Old City |
| Ciwan Hotel Istanbul | Boutique | 23 | Old City |
| Clarion Hotel Istanbul Golden Horn | 4.0 star rating | | New City |
 | Clarion Hotel Istanbul Mahmutbey | 5.0 star rating | 245 | Ataturk Airport Istanbul |
 | Cloud 7 Ataköy Marina Hotel Istanbul | Boutique | 46 | New City |
 | Collage Cihangir Hotel Istanbul | Apartment 1st Category | 13 | New City |
 | Collage Cihangir 33 Hotel Istanbul | Aparthotel 4* | 11 | New City |
 | Collage Cihangir 55 Hotel Istanbul | Boutique | 10 | New City |
 | Collage Pera Hotel Istanbul | Boutique | 17 | New City |
 | Collage Taksim Hotel Istanbul | 3.0 star rating | 8 | New City |