| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Ober Weinberg im Burgenland | city | Burgenland | Austria | 47.40 | 16.17 | 1669 | 7112 |
| Oberberg | city | Burgenland | Austria | 47.85 | 16.50 | 830 | 11878 |
| Oberbergen | city | Burgenland | Austria | 47.30 | 16.10 | 1669 | 5397 |
| Oberbildein | city | Burgenland | Austria | 47.13 | 16.47 | 830 | 4607 |
| Oberdorf | city | Burgenland | Austria | 47.22 | 16.22 | 1171 | 7169 |
| Oberdorf im Burgenland | city | Burgenland | Austria | 47.22 | 16.22 | 1171 | 7169 |
| Oberdrosen | city | Burgenland | Austria | 47.88 | 16.12 | 1197 | 9589 |
| Oberellau | city | Burgenland | Austria | 47.13 | 16.12 | 1043 | 5661 |
| Oberhasel | city | Burgenland | Austria | 47.38 | 16.27 | 1669 | 5409 |
| Oberkohlstaetten | city | Burgenland | Austria | 47.37 | 16.33 | 2037 | 4729 |
| Oberkohlstatten | city | Burgenland | Austria | 47.37 | 16.33 | 2037 | 4729 |
| Oberloisdorf | city | Burgenland | Austria | 47.45 | 16.50 | 830 | 4783 |
| Oberneuberg | city | Burgenland | Austria | 47.17 | 16.25 | 872 | 4894 |
| Oberpetersdorf | city | Burgenland | Austria | 47.62 | 16.38 | 1669 | 5103 |
| Oberpodgoria | city | Burgenland | Austria | 47.33 | 16.35 | 1971 | 4755 |
| Oberpullendorf | city | Burgenland | Austria | 47.50 | 16.52 | 830 | 4567 |
| Oberrabnitz | city | Burgenland | Austria | 47.48 | 16.35 | 1131 | 4533 |
| Oberschützen | city | Burgenland | Austria | 47.35 | 16.20 | 1233 | 8475 |
| Oberwart | city | Burgenland | Austria | 47.28 | 16.20 | 990 | 11631 |
| Oberweinberg | city | Burgenland | Austria | 47.40 | 16.17 | 1669 | 7112 |
| Oggau | city | Burgenland | Austria | 47.83 | 16.67 | 351 | 5920 |
| Olbendorf | city | Burgenland | Austria | 47.18 | 16.20 | 895 | 4892 |
| Ollersdorf | city | Burgenland | Austria | 47.18 | 16.17 | 1020 | 4891 |
| Ollersdorf im Burgenland | city | Burgenland | Austria | 47.18 | 16.17 | 1020 | 4891 |
| Oláhciklény | city | Burgenland | Austria | 47.28 | 16.28 | 1040 | 8474 |
| Orbuh | city | Burgenland | Austria | 47.72 | 16.42 | 872 | 12614 |
| Orbánfalu | city | Burgenland | Austria | 47.05 | 16.37 | 830 | 4839 |
| Oslip | city | Burgenland | Austria | 47.83 | 16.62 | 830 | 5660 |
| Osthof | city | Burgenland | Austria | 47.83 | 17.03 | 374 | 3089 |
| Oszlop | city | Burgenland | Austria | 47.83 | 16.62 | 830 | 5660 |
| Owapuindorf | city | Burgenland | Austria | 47.50 | 16.52 | 830 | 4567 |
| Owawart | city | Burgenland | Austria | 47.28 | 16.20 | 990 | 11631 |