| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Unter Barkhausen | city | Niedersachsen | Germany | 53.38 | 9.02 | 32 | 4173 |
| Unter Bautzen | city | Stredocesky Kraj | Czech Republic | 50.44 | 15.13 | 830 | 4668 |
| Unter Bergmoos | city | Bayern | Germany | 47.51 | 10.03 | 3349 | 7628 |
| Unter Berkowitz | city | Stredocesky Kraj | Czech Republic | 50.39 | 14.44 | 830 | 9004 |
| Unter Berschkowitz | city | Stredocesky Kraj | Czech Republic | 50.39 | 14.44 | 830 | 9004 |
| Unter Bichelbacherhof | city | Baden-Wurttemberg | Germany | 49.32 | 9.25 | 958 | 4152 |
| Unter Bildsberg | city | Bayern | Germany | 48.32 | 12.87 | 1669 | 3566 |
| Unter Blauen | city | Baden-Wurttemberg | Germany | 47.73 | 7.85 | 1840 | 8374 |
| Unter Blechschmiede | city | Baden-Wurttemberg | Germany | 47.96 | 7.98 | 1686 | 8187 |
| Unter Bobrau | city | Vysocina | Czech Republic | 49.47 | 16.12 | 1768 | 3278 |
| Unter Bojanowitz | city | Jihomoravsky Kraj | Czech Republic | 48.86 | 17.03 | 830 | 15559 |
| Unter Bramberg | city | Oberosterreich | Austria | 47.95 | 14.60 | 1876 | 2092 |
| Unter Brambergergut | city | Oberosterreich | Austria | 47.95 | 14.60 | 1876 | 2092 |
| Unter Brand | city | Oberosterreich | Austria | 47.88 | 14.10 | 1669 | 10740 |
| Unter Breidenbach | city | Nordrhein-Westfalen | Germany | 51.02 | 7.34 | 830 | 25749 |
| Unter Brochhagen | city | Nordrhein-Westfalen | Germany | 51.04 | 7.41 | 872 | 20128 |
| Unter Buchen | city | Vorarlberg | Austria | 47.08 | 10.00 | 4576 | 2796 |
| Unter Bueschem | city | Nordrhein-Westfalen | Germany | 51.06 | 7.38 | 830 | 16559 |
| Unter Buschem | city | Nordrhein-Westfalen | Germany | 51.06 | 7.38 | 830 | 16559 |
| Unter Buschkau | city | Pomorskie | Poland | 54.25 | 18.43 | 830 | 5251 |