| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Oled Snoussi | city | Wilaya de Mostaganem | Algeria | 35.7722222 | -0.0580556 | 154 | 25912 |
| Oued el Kheir | city | Wilaya de Mostaganem | Algeria | 35.9502778 | 0.3808333 | 826 | 25883 |
| Oued el Kheïr | city | Wilaya de Mostaganem | Algeria | 35.9502778 | 0.3808333 | 826 | 25883 |
| Ouillis | city | Wilaya de Mostaganem | Algeria | 36.1044444 | 0.2786111 | 879 | 20836 |
| Ouillis-Plage | city | Wilaya de Mostaganem | Algeria | 36.1222222 | 0.2647222 | 593 | 20836 |
| Oulad Moussa | city | Wilaya de Mostaganem | Algeria | 36.1875 | 0.4813889 | 770 | 23851 |
| Ouled Ali | city | Wilaya de Mostaganem | Algeria | 36.1111111 | 0.3655556 | 1354 | 25469 |
| Ouled Barkhat | city | Wilaya de Mostaganem | Algeria | 36.065 | 0.3863889 | 633 | 25844 |
| Ouled Lahsene | city | Wilaya de Mostaganem | Algeria | 36.0333333 | 0.3333333 | 314 | 25858 |
| Ouled Sidi Fares | city | Wilaya de Mostaganem | Algeria | 36.0333333 | 0.5 | 1263 | 25849 |
| Ouled Sidi Fárès | city | Wilaya de Mostaganem | Algeria | 36.0333333 | 0.5 | 1263 | 25849 |
| Ouled Sidi Larbi | city | Wilaya de Mostaganem | Algeria | 36.1777778 | 0.3741667 | 16 | 14372 |
| Ouled Snoussi | city | Wilaya de Mostaganem | Algeria | 35.7722222 | -0.0580556 | 154 | 25912 |
| Ouled Tahar | city | Wilaya de Mostaganem | Algeria | 36.0252778 | 0.3338889 | 242 | 25858 |
| Ouled Younes | city | Wilaya de Mostaganem | Algeria | 36.0572222 | 0.2661111 | 748 | 25780 |
| Ouled-Moussa | city | Wilaya de Mostaganem | Algeria | 36.1875 | 0.4813889 | 770 | 23851 |
| Ourea | city | Wilaya de Mostaganem | Algeria | 35.8669444 | 0.0391667 | 790 | 15827 |
| Oureah | city | Wilaya de Mostaganem | Algeria | 35.8669444 | 0.0391667 | 790 | 15827 |
| Ouréa | city | Wilaya de Mostaganem | Algeria | 35.8669444 | 0.0391667 | 790 | 15827 |
| Ouréah | city | Wilaya de Mostaganem | Algeria | 35.8669444 | 0.0391667 | 790 | 15827 |
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