| Name | Country | Feature class | Latitude | Longitude | |
|---|---|---|---|---|---|
4601  | Palacios de Ríopisuerga  | Spain, Castille and León Burgos > Palacios de Riopisuerga | populated place population 29 | N 42° 20′ 38'' | W 4° 15′ 24'' |
| 4602 | Palacios del Sil Palacios,Palacios del Sil | Spain, Castille and León Leon > Palacios del Sil | seat of a third-order administrative division population 1,343 | N 42° 52′ 33'' | W 6° 25′ 53'' |
| 4603 | Pajares de Adaja Pajares de Adaja | Spain, Castille and León Avila > Pajares de Adaja | seat of a third-order administrative division population 185 | N 40° 55′ 26'' | W 4° 38′ 25'' |
| 4604 | Padreda Pedreda,San Miguel de Padreda | Spain, Galicia Ourense > Vilar de Barrio | populated place population 75, elevation 653m | N 42° 10′ 44'' | W 7° 38′ 15'' |
| 4605 | Padiernos Pad'ernos,Padiernos,badyrnws,pa die er nuo si,padyrns,Падиернос,Падьернос,Падьєрнос,باديرنوس,پادیرنس... | Spain, Castille and León Avila > Padiernos | seat of a third-order administrative division population 220 | N 40° 37′ 18'' | W 4° 50′ 42'' |
| 4606 | Oza Bella Oza Bella,Oza Vella | Spain, Galicia A Coruña > Carballo | populated place | N 43° 15′ 21'' | W 8° 41′ 25'' |
| 4607 | Otur Iglesia de Otur,Otur,San Bartolome,San Bartolomé | Spain, Asturias Asturias > Valdés | populated place population 375 | N 43° 32′ 21'' | W 6° 35′ 30'' |
| 4608 | Oto | Spain, Aragon Huesca > Broto Municipality | populated place | N 42° 35′ 56'' | W 0° 7′ 41'' |
| 4609 | Oteruelo del Valle Oteruelo del Valle | Spain, Madrid Madrid > Rascafría | populated place population 138 | N 40° 54′ 46'' | W 3° 51′ 7'' |
| 4610 | Oteros de Boedo Oteros de Boedo | Spain, Castille and León Palencia > Collazos de Boedo | populated place | N 42° 39′ 18'' | W 4° 29′ 25'' |
| 4611 | Otzerinmendi Ocerinmendi,Ocerinmendio,Otceremendi,Otzerinmendi | Spain, Basque Country Biscay > Zeanuri | populated place | N 43° 6′ 0'' | W 2° 45′ 0'' |
| 4612 | Osso de Cinca Osso,Osso de Cinca,Ossó de Cinca | Spain, Aragon Huesca > Osso de Cinca | populated place population 764, elevation 164m | N 41° 39′ 58'' | E 0° 11′ 29'' |
| 4613 | Osor Osor | Spain, Catalonia Girona > Osor | populated place population 456, elevation 390m | N 41° 56′ 45'' | E 2° 33′ 19'' |
| 4614 | Osoño Osono,Osoño,San Pedro de Osono,San Pedro de Osoño | Spain, Galicia Ourense > Vilardevós | populated place population 204, elevation 658m | N 41° 56′ 12'' | W 7° 22′ 12'' |
| 4615 | Osona Osona | Spain, Castille and León Soria > Fuentepinilla | populated place | N 41° 34′ 30'' | W 2° 43′ 38'' |
| 4616 | Os de Civís Os de Civis,Os de Civís | Spain, Catalonia Lleida > les Valls de Valira | populated place | N 42° 30′ 40'' | E 1° 26′ 26'' |
| 4617 | Orós Alto | Spain, Aragon Huesca > Biescas Municipality | populated place | N 42° 36′ 27'' | W 0° 18′ 51'' |
| 4618 | Orna de Gállego Orna de Gallego,Orna de Gállego | Spain, Aragon Huesca > Sabiñánigo | populated place | N 42° 27′ 3'' | W 0° 26′ 10'' |
| 4619 | Orlé Orle,Orlé | Spain, Asturias Asturias > Caso | populated place | N 43° 11′ 50'' | W 5° 19′ 29'' |
| 4620 | Orís Caserio Oris,Caserío Oris,Oris,Orís | Spain, Catalonia Barcelona > Orís | seat of a third-order administrative division | N 42° 3′ 34'' | E 2° 13′ 14'' |
| 4621 | Orio Orio | Spain, Basque Country Gipuzkoa > Orio | seat of a third-order administrative division population 4,586 | N 43° 16′ 43'' | W 2° 7′ 31'' |
| 4622 | Oria Oria | Spain, Basque Country Gipuzkoa > Lasarte-Oria | populated place population 17,842 | N 43° 15′ 19'' | W 2° 1′ 7'' |
| 4623 | Organyà Organa,Organya,Organyà,Orgañá | Spain, Catalonia Lleida > Organyà | populated place | N 42° 13′ 0'' | E 1° 20′ 0'' |
| 4624 | Orendain Orendain,Orendáin | Spain, Basque Country Gipuzkoa > Orendain | seat of a third-order administrative division population 164 | N 43° 4′ 44'' | W 2° 6′ 43'' |
| 4625 | Oreitia Oreitia | Spain, Basque Country Araba / Álava > Vitoria-Gasteiz | populated place | N 42° 51′ 24'' | W 2° 33′ 32'' |
| 4626 | Orbiso Orbiso,Urbisu | Spain, Basque Country Araba / Álava > Kanpezu / Campezo | populated place | N 42° 41′ 44'' | W 2° 20′ 7'' |
| 4627 | Orbán Orban,Orbán,Santa Maria,Santa Maria de Orban,Santa Marina de Orban,Santa Mariña de Orbán,Santa María... | Spain, Galicia Ourense > Vilamarín | populated place population 149, elevation 544m | N 42° 29′ 0'' | W 7° 50′ 0'' |
| 4628 | Orallo Orallo | Spain, Castille and León Leon > Villablino | populated place | N 42° 58′ 9'' | W 6° 21′ 16'' |
| 4629 | Okina Okia,Oquina | Spain, Basque Country Araba / Álava > Bernedo Municipality | populated place | N 42° 45′ 45'' | W 2° 35′ 17'' |
| 4630 | Oneta Oneta | Spain, Asturias Asturias > Villayón | populated place | N 43° 27′ 52'' | W 6° 40′ 8'' |
| 4631 | Ondategi Ondategi,Ondategui,Ondátegui | Spain, Basque Country Araba / Álava > Zigoitia | populated place | N 42° 57′ 26'' | W 2° 44′ 8'' |
| 4632 | Ondarroa Ondarroa,Ondárroa | Spain, Basque Country Biscay > Ondarroa | seat of a third-order administrative division population 9,546 | N 43° 19′ 0'' | W 2° 25′ 0'' |
| 4633 | els Omells de na Gaia els Omells,els Omells de na Gaia | Spain, Catalonia Lleida > els Omells de na Gaia | populated place population 159, elevation 560m | N 41° 30′ 1'' | E 1° 4′ 30'' |
| 4634 | els Omellons Omellons,Omellóns,els Omellons | Spain, Catalonia Lleida > els Omellons | populated place | N 41° 30′ 0'' | E 0° 58′ 0'' |
| 4635 | Oltza Oltza,Olza | Spain, Navarre Navarre > Cendea de Olza/Oltza Zendea | populated place population 1,326 | N 42° 51′ 0'' | W 1° 46′ 0'' |
| 4636 | Olvega Olvega | Spain, Castille and León Soria > Ólvega | populated place population 3,346 | N 41° 46′ 44'' | W 1° 59′ 2'' |
| 4637 | Olp Olp | Spain, Catalonia Lleida > Sort | populated place elevation 1100m | N 42° 25′ 48'' | E 1° 6′ 51'' |
| 4638 | Olocau del Rey Olocau del Rei,Olocau del Rey,Olokau-del'-Rej,ao luo kao de er lei,awlwkaw dyl ry,Олокау-дель-Рей,أو... | Spain, Valencia Castellon > Olocau del Rey | seat of a third-order administrative division population 132 | N 40° 38′ 15'' | W 0° 20′ 25'' |
| 4639 | Olmos de Ojeda Olmos de Ojeda | Spain, Castille and León Palencia > Olmos de Ojeda | seat of a third-order administrative division population 287 | N 42° 43′ 21'' | W 4° 25′ 28'' |
| 4640 | Olmedo Olmedo | Spain, Castille and León Valladolid > Olmedo | seat of a third-order administrative division population 3,570 | N 41° 17′ 13'' | W 4° 41′ 19'' |
| 4641 | Ollo Ollaran,Ollo,Olloibar | Spain, Navarre Navarre > Goñi | populated place population 298 | N 42° 52′ 0'' | W 1° 51′ 0'' |
| 4642 | Olleros de Tera Olleros,Olleros de Tera | Spain, Castille and León Zamora > Calzadilla de Tera | populated place | N 41° 59′ 1'' | W 6° 6′ 5'' |
| 4643 | Olabarri / Ollávarre Olabarri,Ollavarre,Ollávarre | Spain, Basque Country Araba / Álava > Iruña Oka / Iruña de Oca | populated place | N 42° 49′ 6'' | W 2° 50′ 12'' |
| 4644 | Oliván Oliban,Olibán,Olivan | Spain, Aragon Huesca > Sabiñánigo | populated place | N 42° 34′ 31'' | W 0° 18′ 12'' |
| 4645 | Oliola Oliola | Spain, Catalonia Lleida > Oliola | populated place population 270 | N 41° 52′ 32'' | E 1° 10′ 34'' |
| 4646 | Olicio Olicio | Spain, Asturias Asturias > Cangas de Onís | populated place | N 43° 22′ 57'' | W 5° 6′ 55'' |
| 4647 | Oles Oles | Spain, Asturias Asturias > Villaviciosa | populated place population 26 | N 43° 32′ 0'' | W 5° 26′ 0'' |
| 4648 | Oleta Olaeta,Oleta | Spain, Basque Country Araba / Álava > Aramaio Municipality | populated place | N 43° 2′ 50'' | W 2° 37′ 51'' |
| 4649 | Ojacastro Ojacastro,Okhakastro,Oxakastro,ao ha ka si te luo,Охакастро,Օխակաստրո,奥哈卡斯特罗 | Spain, La Rioja La Rioja > Ojacastro | seat of a third-order administrative division population 218 | N 42° 20′ 49'' | W 3° 0′ 17'' |
| 4650 | Òdena Odena,Òdena | Spain, Catalonia Barcelona > Òdena | seat of a third-order administrative division population 2,910 | N 41° 36′ 0'' | E 1° 39′ 0'' |
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