| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Obling | city | Denmark | 55.82 | 8.30 | 16 | 1945 | |
| Oby | city | Denmark | 56.27 | 8.17 | 13 | 1416 | |
| Odby | city | Denmark | 56.60 | 8.53 | 3 | 2037 | |
| Odde | city | Denmark | 56.57 | 8.57 | 3 | 2331 | |
| Odderup | city | Denmark | 55.87 | 8.63 | 121 | 1885 | |
| Oddesund | city | Denmark | 56.58 | 8.55 | 3 | 1745 | |
| Oddesund | city | Denmark | 56.57 | 8.57 | 3 | 2331 | |
| Oddesund Nord | city | Denmark | 56.58 | 8.55 | 3 | 1745 | |
| Oddesund Syd | city | Denmark | 56.57 | 8.57 | 3 | 2331 | |
| Oddum | city | Denmark | 55.87 | 8.60 | 104 | 1903 | |
| Ogelstrup | city | Denmark | 56.33 | 8.38 | 36 | 2776 | |
| Oglstrup | city | Denmark | 56.33 | 8.38 | 36 | 2776 | |
| Ohuse | city | Denmark | 56.27 | 8.15 | 3 | 1218 | |
| Okslund | city | Denmark | 55.85 | 8.72 | 78 | 1006 | |
| Olby | city | Denmark | 56.47 | 8.57 | 88 | 13118 | |
| Olgryde | city | Denmark | 56.30 | 8.60 | 147 | 8299 | |
| Olling | city | Denmark | 56.03 | 8.83 | 111 | 3136 | |
| Olstrup | city | Denmark | 56.12 | 8.43 | 154 | 2128 | |
| Ommosegard | city | Denmark | 56.28 | 8.93 | 114 | 1638 | |
| Omose | city | Denmark | 56.28 | 8.93 | 114 | 1638 | |
| Omvra | city | Denmark | 55.83 | 9.00 | 134 | 1764 | |
| Omvraa | city | Denmark | 55.83 | 9.00 | 134 | 1764 | |
| Opstrup | city | Denmark | 56.22 | 8.22 | 6 | 1789 | |
| Opsund | city | Denmark | 56.08 | 8.55 | 147 | 2677 | |
| Orbaek | city | Denmark | 55.87 | 8.80 | 88 | 1074 | |
| Ormstrup | city | Denmark | 56.30 | 8.50 | 104 | 2003 | |
| Ornhoj | city | Denmark | 56.20 | 8.58 | 170 | 1692 | |
| Ornhoved | city | Denmark | 56.18 | 8.90 | 177 | 12074 | |
| Orre | city | Denmark | 56.23 | 8.88 | 108 | 2900 | |
| Ors | city | Denmark | 56.47 | 8.37 | 72 | 2174 | |
| Orskov | city | Denmark | 56.15 | 8.92 | 131 | 17352 | |
| Orts | city | Denmark | 56.47 | 8.37 | 72 | 2174 | |
| Oster Egebjaerg | city | Denmark | 56.55 | 8.83 | 19 | 2346 | |
| Oster Egebjerg | city | Denmark | 56.55 | 8.83 | 19 | 2346 | |
| Oster Gronning | city | Denmark | 56.65 | 9.08 | 3 | 1703 | |
| Oster Gundestrup | city | Denmark | 56.65 | 9.62 | 144 | 2164 | |
| Oster Lem | city | Denmark | 56.05 | 8.43 | 183 | 1910 | |
| Oster Lina | city | Denmark | 56.22 | 8.97 | 131 | 8389 | |
| Oster Lindaa | city | Denmark | 56.22 | 8.97 | 131 | 8389 | |
| Oster Marup | city | Denmark | 55.98 | 8.50 | 39 | 6416 | |
| Oster No | city | Denmark | 56.10 | 8.33 | 36 | 4430 | |
| Oster Olby | city | Denmark | 56.48 | 8.57 | 85 | 13002 | |
| Oster Rabjerg | city | Denmark | 56.02 | 8.43 | 147 | 1983 | |
| Oster Snebtrup | city | Denmark | 56.25 | 9.02 | 141 | 4694 | |
| Oster Tim | city | Denmark | 56.20 | 8.32 | 32 | 2150 | |
| Oster Vem | city | Denmark | 56.35 | 8.38 | 22 | 2707 | |
| Oster Vemb | city | Denmark | 56.35 | 8.38 | 22 | 2707 | |
| Oster Vintersgaard | city | Denmark | 56.53 | 8.40 | 124 | 3177 | |
| Oster Vintersgard | city | Denmark | 56.53 | 8.40 | 124 | 3177 | |
| Osterbol | city | Denmark | 56.57 | 8.37 | 213 | 3666 | |
| Osterby | city | Denmark | 55.98 | 8.35 | 9 | 1260 | |
| Osterby | city | Denmark | 56.48 | 8.62 | 3 | 7438 | |
| Osterby | city | Denmark | 56.23 | 8.32 | 45 | 2696 | |
| Osterby | city | Denmark | 56.43 | 8.53 | 141 | 7589 | |
| Osterby | city | Denmark | 56.08 | 8.28 | 32 | 6770 | |
| Osterby | city | Denmark | 56.40 | 8.37 | 72 | 2333 | |
| Ostergard | city | Denmark | 56.42 | 8.62 | 121 | 13941 | |
| Ostergard | city | Denmark | 55.83 | 8.53 | 114 | 1241 | |
| Ostermark | city | Denmark | 56.20 | 9.07 | 160 | 8777 | |
| Osttarp | city | Denmark | 55.80 | 8.57 | 147 | 3182 | |
| Over Feldborg | city | Denmark | 56.35 | 8.95 | 95 | 1308 | |
| Over Isen | city | Denmark | 56.08 | 9.25 | 272 | 1526 | |
| Over Julianehede | city | Denmark | 56.15 | 9.32 | 288 | 3350 | |
| Over Simmelkaer | city | Denmark | 56.27 | 9.02 | 141 | 2703 | |
| Over Simmelkjaer | city | Denmark | 56.27 | 9.02 | 141 | 2703 | |
| Over Simmelkjær | city | Denmark | 56.27 | 9.02 | 141 | 2703 | |
| Over Simmelkær | city | Denmark | 56.27 | 9.02 | 141 | 2703 | |
| Over Uhre | city | Denmark | 56.28 | 9.18 | 124 | 3437 | |
| Over Ure | city | Denmark | 56.28 | 9.18 | 124 | 3437 | |
| Overby | city | Denmark | 55.98 | 8.87 | 131 | 1784 | |
| Overby | city | Denmark | 56.53 | 8.33 | 124 | 5975 | |
| Overgaard | city | Denmark | 56.42 | 8.55 | 124 | 11601 | |
| Overgård | city | Denmark | 56.42 | 8.55 | 124 | 11601 | |
| Overlund | city | Denmark | 56.38 | 8.52 | 42 | 7638 | |
| Overtarp | city | Denmark | 55.97 | 8.83 | 82 | 2210 | |
| Ovre Simmelkaer | city | Denmark | 56.27 | 9.02 | 141 | 2703 | |
| Ovre Simmelkær | city | Denmark | 56.27 | 9.02 | 141 | 2703 | |
| Ovstrup | city | Denmark | 56.25 | 8.88 | 108 | 2183 | |
| Oxlund | city | Denmark | 55.85 | 8.72 | 78 | 1006 |