| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Opacacha | city | La Paz | Bolivia | -17.43 | -68.92 | 12998 | 298 |
| Opacachan | city | La Paz | Bolivia | -17.43 | -68.92 | 12998 | 298 |
| Opacar | city | Nampula | Mozambique | -14.67 | 40.31 | 830 | 4997 |
| Opacarra | city | Nampula | Mozambique | -14.19 | 40.38 | 416 | 11920 |
| Opacchiasella | city | Miren-Kostanjevica | Slovenia | 45.85 | 13.58 | 830 | 12356 |
| Opacci | city | Federacija Bosne i Hercegovine | Bosnia & Herzegovina | 43.34 | 17.30 | 1811 | 5950 |
| Opaccocha | city | Ayacucho | Peru | -14.41 | -73.64 | 15108 | 0 |
| Opach | city | Causeni | Moldova | 46.58 | 29.35 | 275 | 7301 |
| Opacha | city | Causeni | Moldova | 46.58 | 29.35 | 275 | 7301 |
| Opachevka | city | Permskiy Kray | Russia | 57.10 | 56.79 | 830 | 1192 |
| Opachi | city | Causeni | Moldova | 46.58 | 29.35 | 275 | 7301 |
| Opachichi | city | Kyyivs'ka Oblast' | Ukraine | 51.20 | 30.32 | 334 | 847 |
| Opachitsy | city | Kyyivs'ka Oblast' | Ukraine | 51.20 | 30.32 | 334 | 847 |
| Opachkhapu | city | Georgia | 42.45 | 41.89 | 830 | 38257 | |
| Opachychi | city | Kyyivs'ka Oblast' | Ukraine | 51.20 | 30.32 | 334 | 847 |
| Opaci | city | Causeni | Moldova | 46.58 | 29.35 | 275 | 7301 |
| Opacic | city | Federacija Bosne i Hercegovine | Bosnia & Herzegovina | 44.12 | 16.84 | 3349 | 4619 |
| Opacica Dolina | city | Licko-Senjska Zupanija | Croatia | 44.57 | 15.96 | 2509 | 320 |
| Opacici | city | Zadarska Zupanija | Croatia | 44.12 | 15.52 | 830 | 8433 |
| Opacie | city | Podkarpackie | Poland | 49.76 | 21.40 | 925 | 26179 |
| Opacionka | city | Podkarpackie | Poland | 49.86 | 21.45 | 830 | 8498 |
| Opactwo | city | Mazowieckie | Poland | 51.53 | 21.77 | 403 | 5088 |
| Opacua | city | Euskadi | Spain | 42.83 | -2.36 | 2690 | 3741 |
| Opacure | city | Apurimac | Peru | -13.78 | -73.50 | 10987 | 5232 |
| Opacz | city | Mazowieckie | Poland | 52.17 | 20.93 | 298 | 147994 |
| Opacz | city | Mazowieckie | Poland | 52.10 | 21.17 | 265 | 31117 |
| Opacz Duża | city | Mazowieckie | Poland | 52.18 | 20.92 | 298 | 175677 |
| Opacz Mala | city | Mazowieckie | Poland | 52.17 | 20.91 | 305 | 130145 |
| Opacz Mała | city | Mazowieckie | Poland | 52.17 | 20.91 | 305 | 130145 |
| Opacz Wielka | city | Mazowieckie | Poland | 52.18 | 20.92 | 298 | 175677 |