| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Odde | city | Denmark | 56.72 | 10.32 | 3 | 1248 | |
| Odden | city | Denmark | 57.53 | 10.10 | 91 | 3233 | |
| Oksenhede | city | Denmark | 57.35 | 10.48 | 88 | 7998 | |
| Ols | city | Denmark | 56.62 | 9.73 | 45 | 5225 | |
| Onsild Stationsby | city | Denmark | 56.57 | 9.75 | 16 | 2907 | |
| Onsilo | city | Denmark | 56.57 | 9.75 | 16 | 2907 | |
| Oplev | city | Denmark | 56.83 | 9.80 | 19 | 2990 | |
| Oppelstrup | city | Denmark | 56.95 | 10.00 | 164 | 10751 | |
| Orbaek | city | Denmark | 56.97 | 9.30 | 72 | 4978 | |
| Ornbol | city | Denmark | 57.53 | 10.03 | 190 | 8514 | |
| Orso | city | Denmark | 57.18 | 10.33 | 98 | 3889 | |
| Orum | city | Denmark | 57.20 | 10.12 | 68 | 3675 | |
| Orum Overdrev | city | Denmark | 57.18 | 10.07 | 49 | 5153 | |
| Orvad | city | Denmark | 57.30 | 10.25 | 82 | 3665 | |
| Oslev | city | Denmark | 57.05 | 9.28 | 45 | 3351 | |
| Ostenaa | city | Denmark | 57.57 | 10.13 | 42 | 2228 | |
| Ostenaen | city | Denmark | 57.57 | 10.13 | 42 | 2228 | |
| Ostenkaer | city | Denmark | 57.58 | 10.23 | 49 | 3253 | |
| Oster Aslund | city | Denmark | 57.10 | 10.17 | 32 | 5108 | |
| Oster Astrup | city | Denmark | 56.77 | 9.98 | 118 | 1250 | |
| Oster Bronderslev | city | Denmark | 57.25 | 10.00 | 104 | 7554 | |
| Oster Bronderup | city | Denmark | 57.43 | 10.00 | 75 | 11437 | |
| Oster Doens | city | Denmark | 56.70 | 9.85 | 209 | 3360 | |
| Oster Doense | city | Denmark | 56.70 | 9.85 | 209 | 3360 | |
| Oster Gerndrup | city | Denmark | 57.23 | 10.00 | 52 | 8542 | |
| Oster Halne | city | Denmark | 57.12 | 9.87 | 19 | 17823 | |
| Oster Halne Enge | city | Denmark | 57.10 | 9.82 | 3 | 10620 | |
| Oster Hasing | city | Denmark | 57.07 | 10.20 | 29 | 3371 | |
| Oster Hassing | city | Denmark | 57.07 | 10.20 | 29 | 3371 | |
| Oster Hjermeslev | city | Denmark | 57.28 | 9.88 | 22 | 5533 | |
| Oster Hjermitslev | city | Denmark | 57.28 | 9.87 | 22 | 4933 | |
| Oster Holmen | city | Denmark | 57.48 | 10.43 | 32 | 13572 | |
| Oster Hornum | city | Denmark | 56.93 | 9.75 | 170 | 4924 | |
| Oster Hurup | city | Denmark | 56.80 | 10.28 | 3 | 1510 | |
| Oster Knasborg | city | Denmark | 57.58 | 10.42 | 3 | 1237 | |
| Oster Linderup | city | Denmark | 57.25 | 10.07 | 121 | 2718 | |
| Oster Melholt | city | Denmark | 57.10 | 10.37 | 9 | 1637 | |
| Oster Mellerup | city | Denmark | 57.30 | 10.08 | 147 | 2604 | |
| Oster Nejsig | city | Denmark | 57.10 | 10.23 | 32 | 2828 | |
| Oster Orbaek | city | Denmark | 56.95 | 9.28 | 52 | 5501 | |
| Oster Oustrup | city | Denmark | 56.83 | 9.57 | 95 | 5387 | |
| Oster Rendbaek | city | Denmark | 57.23 | 9.73 | 6 | 5452 | |
| Oster Skaerum | city | Denmark | 57.42 | 10.37 | 232 | 4093 | |
| Oster Sortkaer | city | Denmark | 57.48 | 10.42 | 32 | 12015 | |
| Oster Sundby | city | Denmark | 57.03 | 9.98 | 78 | 26004 | |
| Oster Svenstrup | city | Denmark | 57.10 | 9.48 | 16 | 3741 | |
| Oster Tirup | city | Denmark | 57.47 | 10.07 | 82 | 8299 | |
| Oster Uttrup | city | Denmark | 57.05 | 10.02 | 16 | 22393 | |
| Oster Vra | city | Denmark | 57.35 | 10.23 | 127 | 4780 | |
| Oster Vraa | city | Denmark | 57.35 | 10.25 | 180 | 4218 | |
| Ostera | city | Denmark | 57.30 | 9.98 | 55 | 9187 | |
| Osteragard | city | Denmark | 56.12 | 10.21 | 160 | 38066 | |
| Osterby | city | Denmark | 57.72 | 10.60 | 0 | 7149 | |
| Osterby | city | Denmark | 57.32 | 11.13 | 13 | 351 | |
| Osterby | city | Denmark | 57.05 | 9.62 | 3 | 595 | |
| Osterby Havn | city | Denmark | 57.32 | 11.13 | 13 | 351 | |
| Ostergaard | city | Denmark | 56.92 | 9.22 | 39 | 3240 | |
| Ostergaarde | city | Denmark | 56.70 | 10.08 | 3 | 4680 | |
| Ostergaarde | city | Denmark | 56.90 | 10.17 | 26 | 3050 | |
| Ostergard | city | Denmark | 56.92 | 9.22 | 39 | 3240 | |
| Ostergarde | city | Denmark | 56.70 | 10.08 | 3 | 4680 | |
| Ostergarde | city | Denmark | 56.90 | 10.17 | 26 | 3050 | |
| Osterhalne Enghuse | city | Denmark | 57.10 | 9.82 | 3 | 10620 | |
| Osterhede | city | Denmark | 57.33 | 9.82 | 32 | 1938 | |
| Osterhede | city | Denmark | 57.53 | 10.25 | 82 | 3528 | |
| Osterladen | city | Denmark | 57.07 | 10.05 | 6 | 19609 | |
| Osterled | city | Denmark | 57.13 | 10.33 | 32 | 3425 | |
| Ostervra | city | Denmark | 57.35 | 10.25 | 180 | 4218 | |
| Ostmark | city | Denmark | 57.23 | 10.37 | 32 | 2190 | |
| Ostrup | city | Denmark | 56.75 | 9.48 | 55 | 3536 | |
| Ostrup | city | Denmark | 57.25 | 9.70 | 13 | 5020 | |
| Ottestrup | city | Denmark | 57.35 | 10.43 | 75 | 5836 | |
| Oudrup | city | Denmark | 56.93 | 9.40 | 39 | 1860 | |
| Oustrupgard | city | Denmark | 56.83 | 9.57 | 95 | 5387 | |
| Ovdrup | city | Denmark | 56.93 | 9.40 | 39 | 1860 | |
| Ove | city | Denmark | 56.70 | 9.98 | 9 | 2392 | |
| Over Jonstrup | city | Denmark | 57.28 | 9.70 | 39 | 2460 | |
| Overklit | city | Denmark | 57.45 | 9.87 | 55 | 3300 | |
| Overlade | city | Denmark | 56.87 | 9.27 | 49 | 2673 | |
| Ovre Jonstrup | city | Denmark | 57.28 | 9.70 | 39 | 2460 | |
| Ovtrup | city | Denmark | 56.93 | 9.40 | 39 | 1860 |