| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Lahti eli Lahdenkylä | city | Sankt-Peterburg | Russia | 59.99 | 30.16 | 0 | 135549 |
| Lakhta | city | Sankt-Peterburg | Russia | 59.99 | 30.16 | 0 | 135549 |
| Lakhtinskiy | city | Sankt-Peterburg | Russia | 59.99 | 30.16 | 0 | 135549 |
| Leningrad | city | Sankt-Peterburg | Russia | 59.89 | 30.26 | 16 | 261764 |
| Lesnoy | city | Sankt-Peterburg | Russia | 60.00 | 30.29 | 9 | 121770 |
| Levashevo | city | Sankt-Peterburg | Russia | 60.10 | 30.21 | 36 | 7223 |
| Levashovo | city | Sankt-Peterburg | Russia | 60.10 | 30.21 | 36 | 7223 |
| Levasjovo | city | Sankt-Peterburg | Russia | 60.10 | 30.21 | 36 | 7223 |
| Levassova | city | Sankt-Peterburg | Russia | 60.10 | 30.21 | 36 | 7223 |
| Levshovo | city | Sankt-Peterburg | Russia | 60.10 | 30.21 | 36 | 7223 |
| Lewaschewo | city | Sankt-Peterburg | Russia | 60.10 | 30.21 | 36 | 7223 |
| Ligovo | city | Sankt-Peterburg | Russia | 59.83 | 30.20 | 9 | 272958 |
| Liiha | city | Sankt-Peterburg | Russia | 59.83 | 30.20 | 9 | 272958 |
| Lisiy Nos | city | Sankt-Peterburg | Russia | 60.02 | 30.02 | 82 | 176964 |
| Lissijnos | city | Sankt-Peterburg | Russia | 60.02 | 30.02 | 82 | 176964 |
| Lisy Nos | city | Sankt-Peterburg | Russia | 60.02 | 30.02 | 82 | 176964 |
| Lomonosov | city | Sankt-Peterburg | Russia | 59.91 | 29.77 | 42 | 209648 |
| Lomonosov i Russland | city | Sankt-Peterburg | Russia | 59.91 | 29.77 | 42 | 209648 |
| Lomonosow | city | Sankt-Peterburg | Russia | 59.91 | 29.77 | 42 | 209648 |
| Lomonossov | city | Sankt-Peterburg | Russia | 59.91 | 29.77 | 42 | 209648 |
| Lomonossow | city | Sankt-Peterburg | Russia | 59.91 | 29.77 | 42 | 209648 |
| Lomonoszov | city | Sankt-Peterburg | Russia | 59.91 | 29.77 | 42 | 209648 |
| Lungsod ng Sankt-Peterburg | city | Sankt-Peterburg | Russia | 59.89 | 30.26 | 16 | 261764 |