| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Ocar En Nkheyla | city | Guelmim-Es Semara | Morocco | 30.22 | -6.72 | 2509 | 596 |
| Osar en Nkheïla | city | Guelmim-Es Semara | Morocco | 30.22 | -6.72 | 2509 | 596 |
| Ouanzift | city | Guelmim-Es Semara | Morocco | 29.14 | -9.57 | 2076 | 447 |
| Ouaouclid | city | Guelmim-Es Semara | Morocco | 29.63 | -8.72 | 5127 | 3288 |
| Ouaouklid | city | Guelmim-Es Semara | Morocco | 29.63 | -8.72 | 5127 | 3288 |
| Ouaourhrout | city | Guelmim-Es Semara | Morocco | 30.10 | -6.87 | 2083 | 596 |
| Ouaoutelt | city | Guelmim-Es Semara | Morocco | 29.10 | -9.90 | 1669 | 1036 |
| Ouaroughrout | city | Guelmim-Es Semara | Morocco | 30.10 | -6.87 | 2083 | 596 |
| Ouaroun | city | Guelmim-Es Semara | Morocco | 28.95 | -10.16 | 830 | 447 |
| Ouayrtout | city | Guelmim-Es Semara | Morocco | 30.11 | -6.88 | 2509 | 596 |
| Ouggoug | city | Guelmim-Es Semara | Morocco | 29.25 | -9.45 | 3349 | 1873 |
| Ouiloulan | city | Guelmim-Es Semara | Morocco | 29.76 | -8.64 | 5869 | 1502 |
| Ouiloulane | city | Guelmim-Es Semara | Morocco | 29.76 | -8.64 | 5869 | 1502 |
| Ouintla | city | Guelmim-Es Semara | Morocco | 29.53 | -8.54 | 3349 | 596 |
| Ouisgane | city | Guelmim-Es Semara | Morocco | 29.15 | -9.69 | 1955 | 511 |
| Ouizmaine | city | Guelmim-Es Semara | Morocco | 29.85 | -7.70 | 2798 | 596 |
| Oulad Jama | city | Guelmim-Es Semara | Morocco | 30.13 | -6.84 | 2509 | 596 |
| Oulad Mrah | city | Guelmim-Es Semara | Morocco | 30.32 | -6.61 | 4189 | 595 |
| Ouled Boukdir | city | Guelmim-Es Semara | Morocco | 30.11 | -6.85 | 4324 | 596 |
| Ouled Jamaa | city | Guelmim-Es Semara | Morocco | 30.13 | -6.84 | 2509 | 596 |
| Ouled Mrah | city | Guelmim-Es Semara | Morocco | 30.32 | -6.61 | 4189 | 595 |
| Oum El Guerdane ⵯⵎⵎ ⵍⴳⵔⴷⴰⵏ أم الڭردان | city | Guelmim-Es Semara | Morocco | 29.65 | -7.95 | 1755 | 596 |
| Oum el Aleg | city | Guelmim-Es Semara | Morocco | 29.36 | -8.20 | 1669 | 596 |
| Oum el Alek | city | Guelmim-Es Semara | Morocco | 29.36 | -8.20 | 1669 | 596 |
| Oum el Gourdane | city | Guelmim-Es Semara | Morocco | 29.65 | -7.95 | 1755 | 596 |
| Oum el Guerdane | city | Guelmim-Es Semara | Morocco | 29.65 | -7.95 | 1755 | 596 |
| Ouraghat | city | Guelmim-Es Semara | Morocco | 29.29 | -8.61 | 2076 | 596 |
| Ouragnat | city | Guelmim-Es Semara | Morocco | 29.29 | -8.61 | 2076 | 596 |
| Ourarhat | city | Guelmim-Es Semara | Morocco | 29.29 | -8.61 | 2076 | 596 |
| Ouzgane | city | Guelmim-Es Semara | Morocco | 29.15 | -9.69 | 1955 | 511 |
| Ouzrou | city | Guelmim-Es Semara | Morocco | 29.71 | -8.52 | 3540 | 596 |
| Ouâaroun Sahel | city | Guelmim-Es Semara | Morocco | 28.95 | -10.16 | 830 | 447 |