| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Oben Steine Bruck | city | Province de Luxembourg | Belgium | 49.7166667 | 5.7 | 1243 | 7223 |
| Oben Steine Brück | city | Province de Luxembourg | Belgium | 49.7166667 | 5.7 | 1243 | 7223 |
| Obent Steine Bruck | city | Province de Luxembourg | Belgium | 49.7166667 | 5.7 | 1243 | 7223 |
| Obent Steine Brück | city | Province de Luxembourg | Belgium | 49.7166667 | 5.7 | 1243 | 7223 |
| Ochamps | city | Province de Luxembourg | Belgium | 49.9333333 | 5.2833333 | 1443 | 3749 |
| Odeigne | city | Province de Luxembourg | Belgium | 50.2666667 | 5.6833333 | 1811 | 2536 |
| Offagne | city | Province de Luxembourg | Belgium | 49.8833333 | 5.1833333 | 1423 | 4677 |
| Offaing | city | Province de Luxembourg | Belgium | 49.8333333 | 5.4833333 | 1473 | 3402 |
| Offange | city | Province de Luxembourg | Belgium | 49.8833333 | 5.1833333 | 1423 | 4677 |
| Oisefagne | city | Province de Luxembourg | Belgium | 49.8666667 | 5.65 | 1492 | 2198 |
| On | city | Province de Luxembourg | Belgium | 50.1666667 | 5.2833333 | 1046 | 9276 |
| Oneux | city | Province de Luxembourg | Belgium | 50.4 | 5.4333333 | 971 | 5484 |
| Opont | city | Province de Luxembourg | Belgium | 49.9333333 | 5.1166667 | 1158 | 3558 |
| Oppagne | city | Province de Luxembourg | Belgium | 50.3 | 5.5166667 | 971 | 4577 |
| Orgeo | city | Province de Luxembourg | Belgium | 49.8333333 | 5.3 | 1272 | 3978 |
| Orsainfaing | city | Province de Luxembourg | Belgium | 49.7166667 | 5.5166667 | 1105 | 4000 |
| Ortheuville | city | Province de Luxembourg | Belgium | 50.0833333 | 5.5333333 | 1230 | 2404 |
| Ortho | city | Province de Luxembourg | Belgium | 50.1333333 | 5.6166667 | 1384 | 2613 |
| Oster | city | Province de Luxembourg | Belgium | 50.3 | 5.55 | 997 | 4018 |
| Oster | city | Province de Luxembourg | Belgium | 50.2666667 | 5.65 | 1538 | 2451 |
| Ottre | city | Province de Luxembourg | Belgium | 50.25 | 5.8333333 | 1781 | 3437 |
| Ottré | city | Province de Luxembourg | Belgium | 50.25 | 5.8333333 | 1781 | 3437 |
| Oubourcy | city | Province de Luxembourg | Belgium | 50.0333333 | 5.8 | 1584 | 5699 |
| Our | city | Province de Luxembourg | Belgium | 49.9666667 | 5.1333333 | 1246 | 3465 |
| Ourt | city | Province de Luxembourg | Belgium | 49.9333333 | 5.4166667 | 1660 | 4913 |
| Ourthe | city | Province de Luxembourg | Belgium | 50.1883333 | 5.9802778 | 1584 | 3603 |
| Ozo | city | Province de Luxembourg | Belgium | 50.3666667 | 5.5666667 | 826 | 5165 |
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