| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Ober Illnau | city | Zurich | Switzerland | 47.41 | 8.72 | 1794 | 53444 |
| Ober Urdorf | city | Zurich | Switzerland | 47.38 | 8.43 | 1669 | 111797 |
| Ober-Buch | city | Zurich | Switzerland | 47.55 | 8.62 | 1942 | 20806 |
| Ober-Stammheim | city | Zurich | Switzerland | 47.63 | 8.80 | 1669 | 9270 |
| Ober-Wetzikon | city | Zurich | Switzerland | 47.33 | 8.80 | 1801 | 50974 |
| Obereischtringe | city | Zurich | Switzerland | 47.41 | 8.46 | 1669 | 166266 |
| Oberembrach | city | Zurich | Switzerland | 47.49 | 8.62 | 1669 | 45962 |
| Oberengstringen | city | Zurich | Switzerland | 47.41 | 8.46 | 1669 | 166266 |
| Oberglatt | city | Zurich | Switzerland | 47.48 | 8.52 | 1669 | 69483 |
| Oberglatt ZH | city | Zurich | Switzerland | 47.48 | 8.52 | 1669 | 69483 |
| Oberhausen | city | Zurich | Switzerland | 47.42 | 8.57 | 1669 | 191531 |
| Oberhausen-Boeschenwiesen | city | Zurich | Switzerland | 47.42 | 8.57 | 1669 | 191531 |
| Oberhausen-Böschenwiesen | city | Zurich | Switzerland | 47.42 | 8.57 | 1669 | 191531 |
| Oberhusen | city | Zurich | Switzerland | 47.42 | 8.57 | 1669 | 191531 |
| Oberillnau | city | Zurich | Switzerland | 47.41 | 8.72 | 1794 | 53444 |
| Obermeilen / Au | city | Zurich | Switzerland | 47.23 | 8.63 | 1902 | 44510 |
| Oberriede | city | Zurich | Switzerland | 47.28 | 8.58 | 1669 | 72330 |
| Oberrieden | city | Zurich | Switzerland | 47.28 | 8.58 | 1669 | 72330 |
| Oberschlatt | city | Zurich | Switzerland | 47.46 | 8.85 | 2624 | 19063 |
| Oberstamme | city | Zurich | Switzerland | 47.63 | 8.80 | 1669 | 9270 |
| Oberstammheim | city | Zurich | Switzerland | 47.63 | 8.80 | 1669 | 9270 |
| Oberwenige | city | Zurich | Switzerland | 47.50 | 8.41 | 1669 | 24084 |
| Oberweningen | city | Zurich | Switzerland | 47.50 | 8.41 | 1669 | 24084 |
| Oberwetzikon | city | Zurich | Switzerland | 47.33 | 8.80 | 1801 | 50974 |
| Oberwinterthur (Kreis 2) / Hegi | city | Zurich | Switzerland | 47.50 | 8.77 | 1669 | 72370 |
| Oberämbri | city | Zurich | Switzerland | 47.49 | 8.62 | 1669 | 45962 |
| Obfelden | city | Zurich | Switzerland | 47.26 | 8.41 | 1669 | 29731 |
| Obfälde | city | Zurich | Switzerland | 47.26 | 8.41 | 1669 | 29731 |
| Oerlikon | city | Zurich | Switzerland | 47.41 | 8.56 | 1669 | 227478 |
| Oetwil | city | Zurich | Switzerland | 47.43 | 8.40 | 1669 | 77622 |
| Oetwil / Oetwil an der Limmat | city | Zurich | Switzerland | 47.43 | 8.40 | 1669 | 77622 |
| Oetwil am See | city | Zurich | Switzerland | 47.27 | 8.72 | 1748 | 52046 |
| Oetwil an der Limmat | city | Zurich | Switzerland | 47.43 | 8.40 | 1669 | 77622 |
| Opfike | city | Zurich | Switzerland | 47.43 | 8.58 | 1669 | 160852 |
| Opfikon | city | Zurich | Switzerland | 47.43 | 8.58 | 1669 | 160852 |
| Opfikon-Glattbrugg | city | Zurich | Switzerland | 47.43 | 8.58 | 1669 | 160852 |
| Ossinge | city | Zurich | Switzerland | 47.61 | 8.73 | 1669 | 8995 |
| Ossingen | city | Zurich | Switzerland | 47.61 | 8.73 | 1669 | 8995 |
| Otelfinge | city | Zurich | Switzerland | 47.46 | 8.39 | 1669 | 60830 |
| Otelfingen | city | Zurich | Switzerland | 47.46 | 8.39 | 1669 | 60830 |
| Ottebach | city | Zurich | Switzerland | 47.28 | 8.41 | 1669 | 30042 |
| Ottenbach | city | Zurich | Switzerland | 47.28 | 8.41 | 1669 | 30042 |