| | | | |
| OGET |
| | BUIRONFOSSE (B ) | 1785 | 1785 |
| | SIVRY (B ) | 1806 | 1807 |
| | | | |
| OLIVIER |
| | (F ) | 1972 | 1974 |
| | ECCLES (F ) | 1763 | 1763 |
| | GRANDRIEU (B ) | 1799 | 1799 |
| | PERUWELZ (B ) | 1807 | 1844 |
| | ROUCOURT (B ) | 1779 | 1872 |
| | | | |
| ORBAN |
| | FROIDCHAPELLE (B ) | 1935 | 1935 |
| | MONTBLIART (B ) | 1957 | 1957 |
| | | | |
| ORBANT |
| | (B ) | 1968 | 1968 |
| | SIVRY (B ) | 1967 | 1967 |
| | | | |
| ORFANU |
| | (B ) | 1990 | 1990 |
| | BUCAREST ( ) | 1960 | 1960 |
| | | | |
| ORPHEE |
| | (B ) | 1785 | 1785 |
| | (B ) | 1795 | 1795 |
| | SIVRY (B ) | 1797 | 1865 |
| | SIVRY (B ) | 1826 | 1852 |
| | | | |
| ORSET |
| | ABBEVILLE (F ) | 1916 | 1916 |
| | ASNIERES (F ) | 1948 | 1948 |
| | FOURMIES (F ) | 1993 | 1993 |
| | | | |
| OST |
| | SARS-LA-BUISSIERE (B ) | 1949 | 1949 |
| | | | |
| OTTO |
| | GRIMBIEMONT ( ) | 1933 | 1933 |
| | VILLANCE (B ) | 1903 | 1926 |
| | | | |
| OVIEDO-GARCIA |
| | WATERMAEL-BOITSFORT (B ) | 1993 | 1993 |
| | | | |
| OXFORT |
| | (B ) | 1760 | 1794 |
| | EPPE-SAUVAGE (F ) | 1784 | 1784 |
| | SIVRY (B ) | 1743 | 1875 |
| | | | |
| OZANE |
| | FROIDCHAPELLE (B ) | 1894 | 1894 |