| Navn | Total | Navn | Total | Navn | Total | Navn | Total | Navn | Total |
|---|
| Olsen Lien | 1 | Opdahl | 2 | Orkenøy | 2 | Orrego Vicuña | 4 | Ortúzar Cuevas | 4 |
| Olsen Schultz | 1 | Opdal | 16 | Orkenøyane | 1 | Orrin | 1 | Ortúzar Eyzaguirre | 1 |
| Olsen Strøm | 1 | Opedal | 1 | Orkney | 3 | Orris | 5 | Ortúzar Formas | 2 |
| Olsen Vian | 1 | Opheim | 19 | Orkneyjarl | 6 | Orseolo | 3 | Ortúzar Montes | 1 |
| Olsnes | 3 | Opisso Demarchi | 1 | Orknøyjarl | 4 | Orseth | 1 | Ortúzar Ortúzar | 1 |
| Olson | 43 | Opitz | 1 | Orlamunde | 1 | Orsini | 14 | Ortúzar Pereira | 3 |
| Olson O. (Valentin Bagge Olson O. (Valentin Bagge | 1 | Oplaendinge Halvdansson de Hedmark | 1 | Orlamuende, of | 1 | Orsurza | 2 | Ortúzar Prieto | 4 |
| Olssen | 2 | Opledningejarl | 1 | Orlamunda | 1 | Ortega, de | 1 | Ortúzar Rojas | 10 |
| Olsson | 1 | Oppdahl | 1 | Orlamünde | 1 | Ortenburg | 1 | Ortuzar Santa Maria | 1 |
| Olssson | 1 | Oppheim | 1 | Orlamunde, von | 8 | Ortiz | 1 | Ortúzar Ugarte | 2 |
| Olssøn Kaarbø | 1 | Oppland | 1 | Orlans, d' | 2 | Ortiz Basualdo | 1 | Ortúzar Villalobos | 3 |
| Olufsdatter | 7 | Opplandsjarl | 1 | Orleans | 5 | Ortiz Basualdo y Ramos Mejía | 1 | Os | 7 |
| Olufsdatter Galde | 1 | or Elen ferch Llywelyn | 1 | Orleans, D' | 26 | Ortíz de Abendaño | 1 | Osa | 1 |
| Olufsdatter Lunge | 2 | or Sharpe | 1 | Orléans, de | 9 | Ortiz de Aramayona, Sra Aramayona | 1 | Osberg | 1 |
| Olufsdatter Mechlenborg | 1 | Orange | 2 | Orleans, of | 4 | Ortiz de Camudio | 1 | Osborn | 3 |
| Olufsen | 14 | Orange, d' | 1 | Orleans II, of | 1 | Ortiz de Gaete y Agurto | 1 | Osborne | 3 |
| Olufsen Budahl | 1 | Orange * | 1 | Orleans Queen | 1 | Ortiz de Gaete y Bravo de Naveda | 1 | Oscariz Beaumont y Navarra, de | 1 |
| Olufsen Friis | 1 | Oranje, van | 2 | Orleans***, d' | 1 | Ortiz de Gaete y Mier de Arce | 1 | Oscheret, d' | 1 |
| Olufsen Glug | 1 | Oranje-Nassau, van | 35 | Orleans-Bragance, D' | 1 | Ortiz de la Torre | 1 | Oscheret, de | 2 |
| Olufsen Lunge til Odden | 1 | Orchard | 1 | Orlowski Ugarte | 1 | Ortiz de la Torre y Martínez Sáez | 1 | Osen | 3 |
| Olufsen Pincerna Glug | 1 | Orcheret | 1 | Orm | 6 | Ortiz de Nájera | 1 | Osgjerd | 1 |
| Olufsen til Odden | 1 | Orcutt | 2 | Ormeño Quiroz | 1 | Ortiz de Rosas López de Osornio | 1 | Oslac | 1 |
| Olufssøn Mechlenborg | 1 | Orderløkken | 1 | Ormeño Venegas | 2 | Ortiz de Rozas | 2 | Osland | 4 |
| Olufssøn Soop | 1 | Ordgar | 1 | Ormond | 1 | Ortiz de Rozas de la Cuadra | 1 | Oslin | 3 |
| Olufsøn | 1 | Ordoñes | 2 | Ormsdatter | 3 | Ortiz de Rozas y López de Osornio | 3 | Osnes | 1 |
| Olvesson | 2 | Ordoñes * | 1 | Ormson | 6 | Ortiz de Salcedo | 1 | Osores | 1 |
| Olvik | 1 | Ordoñez | 10 | Ormsson | 2 | Ortiz de Zárate | 2 | Osorez | 1 |
| Olybrius | 1 | Ordóñez Bennett | 1 | Orning | 3 | Ortiz de Zárate y Araya | 1 | Osorio | 3 |
| Omer, St. | 5 | Ordóñez d'Asturias | 1 | Oroño Cullen | 1 | Ortiz de Zarate y de la Cruz | 1 | Osorio de Toledo y de la Torre Almonacid | 1 |
| Oneca | 2 | Ordoñez de León | 2 | Orozco, de | 1 | Ortiz de Zárate y Maldonado | 1 | Ospakdtr | 1 |
| Oneto | 1 | Ordonhes * | 1 | Orr | 9 | Ortiz de Zárate y Olmos de Aguilera | 1 | Ospaksson | 1 |
| Onley | 1 | Ordonhez | 1 | Orre | 2 | Ortiz Estrada | 1 | Ossa | 4 |
| Onofrio Romero, d' | 1 | Ordulf av Sachsen | 1 | Orreby Baroness Orreby) | 1 | Ortiz Gaete y Estrada Caracol | 2 | Ossa Browne | 2 |
| Önundarson | 1 | Ordulfson | 1 | Orrego | 1 | Ortíz Pacheco | 1 | Ossa Cerda | 22 |
| Onundsson | 1 | Orduña López | 1 | Orrego Barros | 1 | Ortuzar | 1 | Ossa Concha | 2 |
| Oosterwijk, Van | 2 | Orellana y Tapia, de | 1 | Orrego Figueroa | 1 | Ortúzar Astudillo | 4 | Ossa Covarrubias | 2 |
| OpaliDska | 2 | Orias Gras | 1 | Orrego Forest | 1 | Ortúzar Barros | 1 | Ossa de Ancieta | 4 |
| OpaliDski | 1 | Orias Villafañe | 2 | Orrego Luco | 1 | Ortúzar Bulnes | 1 | - | - |
| Opazo | 1 | Oritz de Gaete y Mier de Arce | 1 | Orrego Matte | 1 | Ortúzar Castillo | 1 | - | - |
| Opazo Reyes | 3 | Örjanson | 1 | Orrego Méndez | 2 | Ortúzar Correa | 1 | - | - |
| Opazo Silva | 1 | Örjansson | 1 | Orrego Puelma | 1 | Ortúzar Cruz | 1 | - | - |
