| CD | Dates | Nom | Prénom | Sexe | Nation |
|---|---|---|---|---|---|
| 1962- | Ona | Erik | M | AR | |
| 1900- | Onaka | Megumi | |||
| 1857-1922 | Ondricek | Frantisek | M | CZ | |
| 1875-1934 | O'Neill | Norman Houston | M | GB | |
| 1882-1964 | O'Neill | Charles | M | ||
| 1861-1949 | Onfroy de Breville | Pierre | M | ||
| 1966- | Onna | Peter | M | NL | |
| 1946- | Onnen | Manfred | M | ||
| 1920-1977 | Onnen | Gerd | M | ||
| 1900- | Ono | Tadusake | M | ||
| MTM 29 | 19??- | Ono | Seigen | M | JP |
| 1933- | Ono | Yoko | F | JP | |
| Onoe | Kazuhiko | M | JP | ||
| CPO 999 060 | 1784-1853 | Onslow | Georges André | M | FR<GB |
| 1944- | Oorebeek | Christina Viola | F | US>>NL | |
| 1950- | Oortmerssen | Jacques | M | NL | |
| 1942- | Oost | Gert | M | NL | |
| 1958- | Oosten | Roel | M | NL | |
| 1951- | Oosterweld | Ernst | M | NL | |
| 1914- | Ophoven | Hermann | M | ||
| 1870-1942 | Opienski | Henryk | M | PL | |
| 1917- | Opitz | Paul-Hermann | M | ||
| 1837-1912 | Opladen | Adolf | M | ||
| 1878-1941 | Oppel | Reinhard | M | ||
| 19??- | Oppermann | Rudiger | M | DE>>FR | |
| 1953- | Oppermann | Achim | M | ||
| 1935- | Oppo | Franco | M | IT | |
| 1873-1952 | Opsomer | Jacques | M | ||
| 1895- | Opstal | Arie | M | NL | |
| Oradini | |||||
| HCD 31824 | 1947- | Orban | György | M | HU |
| 1884- | Orban | Marcel | M | ||
| BIS 103 + | 1911-1996 | Orbeck | Anne-Marie | F | NO |
| 1918- | Orbeck = Angerer | Rudi | M | ||
| BMG 7432189823 | 1936-1988 | Orbison | Roy | M | US |
| 1925-1991 | Orbon | Julian "de Soto" | M | CU | |
| 1867-1961 | Orchard | William | M | GB | |
| 1897-1961 | Ord | Boris | M | GB | |
| 1734-1786 | Ordonez | Carlos | M | DE | |
| 1500-1550 | Ordonez | Pedro | M | ES | |
| 1954- | Ore | Cecilie | F | NO | |
| Ducale CDL 16 | 1865-1922 | Orefice | Giacomo | M | IT |
| 1857-1919 | Orefice | Vittorio | M | ||
| 1685-1727 | Orefice | Antonio | M | IT | |
| 1978- | O'Regan | Tarik | M | GB | |
| 1981- | O'Reilly | Paul | M | IE | |
| 1937- | Orellana | Joaquin | M | ||
| 1865-1938 | Orem | Preston Ware | M | ||
| Orenstein | Joyce E. | F | US | ||
| Erol 95001 | 1895-1982 | Orff | Carl | M | DE |
| 1926- | Orgad | Ben-Zion | M | DE>>IL | |
| 1818-1892 | Orger | Caroline | F | GB | |
| 1780-1812 | Orgitano | Raffaele | M | IT | |
| 1745-1807 | Orgitano | Paolo | M | IT | |
| 1715-1780 | Orgitano | Vincenzo | M | IT | |
| 1931-1971 | O'Riada | Sean | M | IE | |
| 1899-1984 | Orio = Wapordjieff | Vesco d' | M | ||
| 1434-1484 | Oriola | Pietro | M | IT>>ES | |
| 1777-1848 | Orland | Ferdinand | M | ||
| 1898- | Orlande = Roland | Pierre | M | ||
| 1774-1848 | Orlandi | Ferdinando | M | IT | |
| GB 2198 | 1688-1760 | Orlandini | Giuseppe Maria | M | IT |
| 1928- | Orlinski | Heinz Bernhard | M | ||
| 1944- | Orloff | Peter | M | ||
| GegaNew GD188 | Orlov | Vladimir | M | RU | |
| BIS 390 + | 1600-1653 | Orn | Jacob | M | |
| ART 6144 + | 1893-2002 | Ornstein | Leo | M | US<RU |
| ARTS 47531 | 1555-1633 | Orologio | Allessandro | M | IT |
| 1969- | O'Rourke | Jim | M | US | |
| 1969- | Orozco Aleman | Keyla | F | CU>>NL | |
| MP 822 3842 | Orr | Buxton | |||
| Naxos 554186 | 1893-1976 | Orr | Charles Wilfred | M | GB |
| 1909- | Orr = Kemsley | Robin = Robert | M | GB | |
| 1919- | Orrego-Salas | Juan | M | CL | |
| 1912-1986 | Orrel | Max | M | ||
| M2.W88 1996 + | 1554-1634 | Orsini | Leonora"de Segni" | F | IT |
| 1895-1989 | Orsomando | Giovanni | M | IT | |
| 1909- | Ort | Franz | M | ||
| 1928- | Ortakov | Dragoslav | M | MK | |
| 19??- | Ortega | Anthony | M | ||
| New Albion Records 063 | 1938-2003 | Ortega Alvarado | Sergio | M | CL |
| H M 987016 | 1967- | Ortega Cortes | Ginesa | F | FR |
| Licanus CDM 0305 | 1647-1706 | Ortells | Antonio Teodoro | M | ES |
| 1844-1903 | Orth | Philipp | M | ||
| 1844-1903 | Orth | Georg Julius | M | ||
| 1905-1985 | Orthel | Léon | M | NL | |
| 1871-1944 | Orthmann | Wilhelm = Willy | M | ||
| 1668-1728 | Ortiz | Guadalupe | F | MX | |
| 19??- | Ortiz | Gabriela | F | MX | |
| Mandala 4855 | 1510-1570 | Ortiz | Diego | M | ES |
| 1946- | Ortiz Rolando | Alfredo | M | PY | |
| 1899- | Ortleb | Willy | M | ||
| 1892- | Ortmann | Peter Heinrich | M | ||
| WER 6307 + | Ortmann | Richard | M | ||
| 1951- | Ortmayr | Herbert | M | ||
| 1846-1923 | Ortner | Vinzenz | M | ||
| HMC 901682 + | 1470-1529 | Orto | Marbrianus de | M | BE |
| 1945- | Orvad | Hanne | F | DK | |
| 1886-1973 | Ory | Edwars "Kid" | M | US | |
| 1625-1675 | Orzaio | Susanna Horatio | F | IT | |
| Cambria | 1926- | Osawa | Kasuko | F | JP |
| 1806-1893 | Osborne | George | M | IE | |
| 1948- | Osborne | Nigel | M | GB | |
| 1931- | Osburg | Ralf | M | ||
| 1880-1923 | Oscheit | Max | M | DE | |
| 1895-1951 | Oser | Hans | M | ||
| 1534-1604 | Osiander | Lucas | M | DE | |
| 1910-2000 | Osieck | Hans Hendrik Willem | M | NL | |
| 1868- | Osiier | Julius | M | DK | |
| 18??- | Osikyam | Efendi | M | TR | |
| 1855-1900 | Osman | Muhammad | M | TR | |
| Kalan 691834 | 1840-1904 | Osman | Murad 5 | M | TR |
| 1612-1640 | Osman | Murad 4 | M | TR | |
| 1881-1971 | Osorio-Swash Colaço | Reine | F | NL | |
| 1925- | Ossen = Sebus | Lutz | M | ||
| 1925- | Ossi = Soter | Oswald | M | ||
| BIS 177 + | 1534-1604 | Ossiander | Lucas | M | DE |
| 1944- | Ostendorf | Jens-Peter | M | DE | |
| 18??-19?? | Osten-Sacken | Maximilian | M | RU | |
| 1895-1941 | Osterc | Slavko | M | YU | |
| 19??- | Ostergaard | Edvin | M | NO | |
| 1966- | Osterling | Fredrik | M | SE | |
| 1869- | Osterloh | Karl | M | ||
| 1876-1936 | Ostermann | Willi | M | ||
| 1664-1735 | Osterreich | Georg | M | DE | |
| 1957- | Ostertag | Bob | M | US | |
| 1922- | Osterwald | Rolf E. "Hazy" | M | ||
| 1863- | Osterzee | Cormélie van | |||
| 1928- | Ostovar | Houchang | IR | ||
| SU 111 826 | 1879-1935 | Ostrcil | Otakar = Ottokar | M | CZ |
| MDG 6051029 | 1800-1840 | Ostreich | Carl | M | |
| 1950- | O'Suilleabhain | Micheal | M | IE | |
| 1871-1947 | O'Sullivan | Patrick | M | ||
| LINN CKD 101 | 1710-1769 | Oswald | James | M | GB |
| 1377-1445 | Oswald | "von Wolkenstein" | M | DE | |
| Seeland 515 | 1953- | Oswald | John | M | CA |
| 1852-1931 | Oswald | Henrique | M | BR | |
| 1954- | Oswalt | Adrian | M | DE | |
| Ota | Jun | M | JP | ||
| 1911-1951 | Otaka | Hisatada | M | JP | |
| BIS 490 + | 1944- | Otaka | Atsutada | M | JP |
| 0863-0871 | Otfrid | "de Weissenburg" | M | DE | |
| 1864-1946 | Othegraven | August von | M | DE | |
| BIS 177 + | 1515-1553 | Othmayr = Othmaier | Kaspar | M | DE |
| 1921- | Otis = Veliotes | Johnny | M | ||
| 1600-1676 | Otradovic z : cf Michna | Adam Vaclav | M | CZ | |
| 1748-1805 | Ott | Lorentz Justinian | M | DE | |
| Channel 15498 | 1947- | Ott | David | M | US |
| 1866-1940 | Ott | Christian | M | ||
| MGB 6190 | 1960- | Ott | Daniel | M | CH |
| 1736-1827 | Ottani | Bernardino | M | IT | |
| ECM 4626552 | 1926- | Otte | Hans | M | DE |
| 1967- | Otten | Oliver | M | ||
| 1931- | Otten | Heinz | M | ||
| WER 6307 + | 1905-1942 | Otten | Hans | M | |
| 1873-1951 | Ottenheimer | Paul | M | ||
| 1907-1978 | Otterloo | Willem van | M | NL | |
| 1879- | Ottinger | Richard | M | ||
| 1873-1933 | Ottinger | Ludwig | M | ||
| 1873-1946 | Otto | Theodor | M | ||
| 1600-1650 | Otto | Stephan | M | ||
| 1564-1648 | Otto | Stephan | M | ||
| ARTA-F10088 | 1579-1612 | Otto | Valerius | M | DE |
| 1550-1628 | Otto | Georg | M | DE | |
| 1804-1877 | Otto | Julius Ernst | M | DE | |
| 1922- | Otto | Hans | M | ||
| 1936- | Otto | Hermann | M | ||
| 1867- | Otto | Reinhold | M | ||
| 1938- | Otto | Peter | M | ||
| 17??- | Otto | Luigi | M | IT | |
| 1809-1842 | Otto | Franz | M | ||
| ITM 8-09 | 1912-1974 | Ottosson | Robert Abraham | M | DE>>IS |
| 1825-1877 | Oudrid | Cristobal | M | ES | |
| REM 335601 | Ouellette | Antoine | M | ||
| 1955- | Oulkeroglou | Stathis | M | GR | |
| 19??- | Ourgandjian | Raffi | |||
| 1825-1889 | Ouseley | Frederick Arthur Gore | M | GB | |
| 1871- | Oushoorn | Jacobus Hendrik | M | ||
| WWE 20083 | 1919- | Oustvolskaïa = Ustvolskaja | Galina | F | RU |
| Sicam XXCB001 | 1894-1955 | Ovalle | Jayme Royas | M | BR |
| LP: Melodiya | 1936- | Ovchinnikov | Vyacheslav | M | RU |
| 1919- | Over | Heinz | M | ||
| 1913- | Overath | Johannes | M | ||
| 1872-1933 | Overath | Joseph | M | ||
| 1902- | Overhoff | Kurt | M | AT | |
| 1920-1972 | Overton | Hall | M | ||
| 1893-1918 | Owen | Wilfred Edward Salter | M | GB | |
| 1886-1948 | Owen Morris | Reginald | M | ||
| 1961-2002 | Owen Thomas | Janet | F | GB | |
| 1925- | Owens | Robert Lee | M | US | |
| VRS 2002 + | 16??- | Oxiaga | M | ES | |
| 1974- | Oyamada | Keigo = Cornelius | M | JP | |
| 1932-1996 | Oyens | Tera de Marez | F | NL | |
| Ozaki | Toshiyuki | M | JP | ||
| 1960- | Ozdil Gardner | Sidika | F | TR | |
| Naxos 554 020 | 1754-1813 | Ozi | Etienne | M | FR |
| 1908- | Ozolins | Janis | M | ||
| 18??- | Ozols | M | LV |
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