| 53566 | Pedro Odriozola | 1 | 1877 | 1877 |
| 52959 | Pedro Oiarbide | 1 | 1694 | 1694 |
| 53107 | Pedro Olea | 1 | 1707 | 1707 |
| 51780 | Pedro Ondarza | 1 | 1748 | 1748 |
| 51782 | Pedro Otaegi | 2 | 1744 | 1748 |
| 52683 | Pedro Otaño | 1 | 1772 | 1772 |
| 48211 | Pedro Pagadizabal Arostegi | 1 | 1781 | 1781 |
| 53326 | Pedro Rekalde | 1 | 1693 | 1693 |
| 51688 | Pedro Rekondo | 4 | 1786 | 1888 |
| 51890 | Pedro Roteta | 2 | 1762 | 1795 |
| 52748 | Pedro Santo | 1 | 1737 | 1737 |
| 46404 | Pedro Sarasola | 1 | 1956 | 1956 |
| 42365 | Pedro Sarasua Usandizaga | 1 | 1950 | 1950 |
| 52653 | Pedro Sarobe | 1 | 1755 | 1755 |
| 42407 | Pedro Segurola | 2 | 1949 | 1962 |
| 42489 | Pedro Segurola Kortajarena | 1 | 1969 | 1969 |
| 51676 | Pedro Sorarrain | 7 | 1640 | 1892 |
| 53634 | Pedro Sorondo | 1 | 1880 | 1880 |
| 52599 | Pedro Sorrarain | 1 | 1804 | 1804 |
| 52660 | Pedro Tapia | 2 | 1761 | 1880 |
| 42468 | Pedro Txapartegi Urbieta | 6 | 1967 | 1975 |
| 48168 | Pedro Ugalde Castilla | 1 | 1777 | 1777 |
| 53338 | Pedro Usabiaga | 1 | 1710 | 1710 |
| 53355 | Pedro Usamiz | 1 | 1744 | 1744 |
| 46247 | Pedro Usandizaga | 1 | 1744 | 1744 |
| 52617 | Pedro Usobiaga | 4 | 1715 | 1810 |
| 48189 | Pedro Usobiaga Igarzabal | 1 | 1770 | 1770 |
| 53548 | Pedro Vicente Beobide | 3 | 1868 | 1881 |
| 53161 | Pedro Zabala | 1 | 1713 | 1713 |
| 52522 | Pedro Zelaieta | 1 | 1681 | 1681 |
| 52033 | Pedro Zubeldia | 2 | 1745 | 1793 |
| 48207 | Pedro Zubeldia Zialzeta | 1 | 1773 | 1773 |
| 53673 | Pedro Zubelzu | 1 | 1790 | 1790 |
| 51992 | Pedro Zulaika | 2 | 1694 | 1735 |
| 53223 | Pedro Zuriarrain | 1 | 1729 | 1729 |
| 52513 | Pelayo Juan Alzuru | 1 | 1830 | 1830 |
| 43071 | Pello Errota | 1 | 1964 | 1964 |
| 51991 | Petra Eznarrizaga | 1 | 1686 | 1686 |
| 53398 | Petronila Arizategi | 1 | 1771 | 1771 |
| 42958 | Pilar Iceta Azaldegui | 1 | 1950 | 1950 |
| 53511 | Pilar Ugalde Ancisu | 1 | 1891 | 1891 |
| 52482 | Pío Egaña | 1 | 1880 | 1880 |
| 52828 | Pío Ereñaga | 2 | 1880 | 1881 |
| 53141 | Polonia Aroztegi | 1 | 1712 | 1712 |
| 43500 | Postensa S.A | 1 | 1976 | 1976 |
| 42403 | Pressing S.L | 1 | 1966 | 1966 |
| 52502 | Ramón Altuna | 1 | 1849 | 1849 |
| 47255 | Ramon Antonio Ansuategi Gauna | 1 | 1774 | 1774 |
| 52039 | Ramón Antonio Aranburu | 1 | 1829 | 1829 |
| 43168 | Ramon Errazkin Bergara | 1 | 1971 | 1971 |
