| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Bu Ja'i | city | Gilan | Iran | 37.18 | 49.98 | 19 | 31477 |
| Bu Janeh-ye Bala | city | Gilan | Iran | 37.18 | 49.98 | 19 | 31477 |
| Bu'in | city | Gilan | Iran | 37.19 | 49.34 | 141 | 16578 |
| Bu'in | city | Gilan | Iran | 37.23 | 49.29 | 111 | 28644 |
| Budag Mahalleh | city | Gilan | Iran | 37.55 | 49.18 | -1689 | 3663 |
| Budag-Makhallekh | city | Gilan | Iran | 37.55 | 49.18 | -1689 | 3663 |
| Budak Mahalleh | city | Gilan | Iran | 37.55 | 49.18 | -1689 | 3663 |
| Budakh | city | Gilan | Iran | 37.36 | 49.62 | -1689 | 89054 |
| Budian | city | Gilan | Iran | 37.32 | 49.46 | -1689 | 35120 |
| Buja'i | city | Gilan | Iran | 37.18 | 49.98 | 19 | 31477 |
| Bujaneh | city | Gilan | Iran | 37.18 | 49.98 | 19 | 31477 |
| Bujayeh | city | Gilan | Iran | 37.18 | 49.98 | 19 | 31477 |
| Bulab Mahalleh-ye Golrudbar | city | Gilan | Iran | 37.20 | 49.94 | 3 | 34936 |
| Bunel | city | Gilan | Iran | 37.53 | 49.12 | 118 | 2995 |
| Bunel | city | Gilan | Iran | 37.53 | 49.13 | 59 | 3047 |
| Bur Sara | city | Gilan | Iran | 38.01 | 48.90 | -1689 | 1899 |
| Bura Pest | city | Gilan | Iran | 37.84 | 48.78 | 1669 | 2980 |
| Bura Sarāi | city | Gilan | Iran | 38.01 | 48.90 | -1689 | 1899 |
| Bureh Sara | city | Gilan | Iran | 36.91 | 49.90 | 5269 | 11722 |
| Burun-e Bala | city | Gilan | Iran | 37.94 | 48.78 | 4189 | 2980 |
| Burun-e Pa'in | city | Gilan | Iran | 37.94 | 48.79 | 4304 | 2980 |
| Busar | city | Gilan | Iran | 37.31 | 49.60 | -1689 | 95175 |
| Bussard | city | Gilan | Iran | 37.31 | 49.60 | -1689 | 95175 |
| Buz`alam | city | Gilan | Iran | 37.17 | 49.94 | 52 | 26868 |
| Buzga | city | Gilan | Iran | 37.09 | 49.82 | 830 | 12047 |
| Buzgovar | city | Gilan | Iran | 37.02 | 50.16 | 2837 | 9238 |
| Buzgāh Deh | city | Gilan | Iran | 37.30 | 49.73 | -1689 | 95190 |