 | Arena Hotel Istanbul | Boutique | 27 | Old City |
 | Aren Suites Hotel Istanbul | Boutique | 17 | Old City |
| Ares Hotel Istanbul | 3.0 star rating | 19 | Old City |
 | Aristocrat Hotel Istanbul | Boutique | 17 | Old City |
 | Armada Hotel Old City Sultanahmet Istanbul | 4.0 star rating | 108 | Old City |
 | Armagrandi Spina Hotel Istanbul | Boutique | 30 | Old City |
 | Art City Hotel Istanbul | 3.0 star rating | 16 | Old City |
 | Artefes Hotel Istanbul | Boutique | 25 | Old City |
 | Aruna Hotel Istanbul | 4.0 star rating | | Old City |
 | Asitane Life Hotel Istanbul | 3.0 star rating | 12 | Old City |
 | Askin Hotel Istanbul | 3.0 star rating | 19 | Old City |
 | Askoc Hotel Istanbul | 4.0 star rating | 108 | Old City |
 | Aslan Istanbul Hotel | 3.0 star rating | 18 | Old City |
 | Asmali Hotel Istanbul | Boutique | 16 | Old City |
 | Aspalace Hotel Istanbul | 3.0 star rating | 28 | Old City |
 | Aspen Hotel Istanbul | 4.0 star rating | 63 | Old City |
 | Aston Residence Hotel Istanbul | Boutique | 18 | Old City |
 | Asur Hotel Istanbul | 3.0 star rating | 34 | Old City |
 | Atlantis Hotel Istanbul | 3.0 star rating | 17 | Old City |
 | Aura Apart Hotel Istanbul | Aparthotel 3* | 78 | Old City |
 | Avcilar Vizyon Hotel Istanbul | Pending Category | 55 | Old City |
 | Avicenna Hotel Istanbul | Boutique | 48 | Old City |
 | Ayasofya Hotel Istanbul | Boutique | 22 | Old City |
 | Ayasofya Apart Hotel Istanbul | Aparthotel 3* | 15 | Old City |
| Ayasofya Deluxe Apart Hotel Istanbul | Without Official Category | 15 | Old City |
 | Ayasultan Boutique Hotel Istanbul | Boutique | 36 | Old City |
 | Aybar Hotel Istanbul | Bed And Breakfast | 25 | Old City |
 | Azade Hotel Istanbul | Boutique | 33 | Old City |
| Azade Premier Hotel Istanbul | Boutique | 20 | Old City |
| Azak Hotel Topkapi Istanbul | 4.0 star rating | 118 | Old City |
 | Aziyade Hotel Istanbul | 4.0 star rating | 105 | Old City |
 | Balin Hotel Istanbul | Boutique | 28 | Old City |
| Barbera Hotel Istanbul | Boutique | | Old City |
 | Barin Hotel Istanbul | 3.0 star rating | 62 | Old City |
| Barok Hotel Istanbul | Boutique | 29 | Old City |
 | Basileus Hotel Istanbul | 3.0 star rating | 20 | Old City |
 | Bekdas Hotel Deluxe Istanbul | 4.0 star rating | 97 | Old City |
| Berce Hotel Istanbul | 3.0 star rating | 7 | Old City |
| Bergama Hotel Istanbul | 3.0 star rating | 55 | Old City |
 | Berr Hotel Istanbul | 4.0 star rating | 102 | Old City |
 | Best Nobel Hotel 2 Istanbul | 3.0 star rating | 35 | Old City |
 | Best Nobel Hotel Istanbul | 3.0 star rating | 35 | Old City |
 | Bestpoint Hotel Istanbul | 3.0 star rating | | Old City |
 | Best Town Palace Hotel Istanbul | 3.0 star rating | 41 | Old City |
 | Best Western Antea Palace Hotel & Spa Istanbul | 4.0 star rating | 59 | Old City |
 | Best Western Citadel Special Hotel Istanbul | 4.0 star rating | 31 | Old City |
 | Best Western Empire Palace Hotel Istanbul | 4.0 star rating | 35 | Old City |
 | Best Western Plus The President Hotel Istanbul | 4.0 star rating | 201 | Old City |
 | BeyazitHan Suites Hotel Istanbul | Aparthotel 2* | 12 | Old City |
 | Beyaz Kugu Hotel Istanbul | 3.0 star rating | 38 | Old City |