| Olive Kline - Elsie Baker | 10 | 1915 - 1926 |
| Olive Kline, Elsie Baker, Marguerite Dunlap | 1 | 1916 |
| Olive Kline, Marguerite Dunlap, Elizabeth Wheeler | 1 | 1916 |
| Olive Kline - Marguerite Dunlap | 1 | 1919 |
| Olive Mason | 1 | 1949 |
| Olive Moorefield | 2 | 1956 - 1957 |
| Olive Moorefield - Jimmy Makulis | 1 | 1956 |
| Oliver And Allen (The Blind Singers) | 5 | 1937 - 1938 |
| The Oliver Band | 1 | 1929 |
| Oliver Carter | 1 | 1925 |
| Oliver Cobb | 2 | 1929 |
| Oliver Cobb And His Rhythm Kings | 1 | 1929 |
| Oliver Dance Orchestra | 4 | 1925 - 1930 |
| Oliver J. Dragon With Kukla And Fran Allison | 1 | 1953 |
| Oliver Military Band | 1 | 1929 |
| Oliver Moore | 1 | 1928 |
| Oliver Sims | 1 | 1926 |
| Oliver Wakefield | 2 | 1936 |
| Oliver's Prairie Pioneers | 1 | |
| Olivers Jazz Band | 1 | |
| The Olivers | 1 | 1957 |
| Olle Adolphson | 2 | 1957 |
| Olle Bergman | 5 | 1954 - 1956 |
| Olle Bergman Och Systrarna Rosenblom | 1 | 1954 |
| Olle Björling | 1 | 1935 |
| Olle I Skratthult | 3 | 1917 - 1927 |
| Olle I. Skratthult (Hjalmer Peterson) | 1 | 1934 |
| Olle Johnny | 29 | 1935 - 1951 |
| Olle Johnny - Jack Gill | 1 | 1939 |
| Olle Johnny Dragspelsorkester | 1 | 1949 |
| Olle Johnny's Dragspelskvartett | 1 | 1937 |
| Olle Johnny's Dragspelsorkester | 1 | 1937 |
| Olle Johnny's Orkester | 2 | 1937 |
| Olle Johnny's Swingers | 1 | 1939 |
| Olle Johnnys Dragspelsorkester | 4 | 1935 - 1948 |
| Olle Johnnys Musette-Orkester | 1 | 1945 |
| Olle Nygren | 4 | 1938 - 1945 |
| Olle Strandberg | 2 | 1909 - 1926 |
| Olle's Trio | 1 | |
| Ollen And Dennis "The Gospel Singers" | 1 | |
| Olley Oakley | 1 | 1914 |
| Olli Hämeen Kvintetti | 1 | 1951 |
| Ollie Hess | 1 | 1932 |
| Ollie I Skratthult (Hjalmar Peterson) | 1 | 1934 |
| Ollie Jackson | 2 | 1946 |
| Ollie Powers | 1 | 1923 |
| Ollie Ross | 1 | 1929 |
| Ollie Shepard | 13 | 1937 - 1951 |
| Ollie Shepard And His Kentucky Boys | 8 | 1937 - 1940 |
| Ollie Shepard Trio | 1 | 1947 |
| Olly Oakley | 49 | 1903 - 1923 |
| Olly Oakley And Joe Morley | 2 | 1916 |
| Olly Oakley And Stanley Kirkby | 3 | 1912 |
| Olly Oakley, V. Opferman And S. Kirkby | 1 | 1912 |
| Olof Friberg | 1 | 1936 |
| Olof Winter | 1 | 1954 |
| Olshanetsky's Orchestra | 1 | |
| Olympic Dance Orchestra | 5 | 1925 - 1929 |
| Olympic Military Band | 1 | 1921 |
| The Olympic Singers | 1 | 1925 |
| The Olympics | 7 | 1958 - 1993 |
| Omar Blondahl | 2 | |
| Omar Lamparter Mit Seiner Swing-Band | 1 | 1948 |
| Omer Dumas Et Ses Ménestrels | 1 | |
| Omer Simeon | 6 | 1929 - 1949 |
| Omer Simeon Trio | 2 | 1949 |
| Государственный Омский Русский Народный Хор [State Omsk Russian Folk Choir] | 12 | 1953 - 1967 |
| One Arm Slim | 1 | 1938 |
| One Beverley Sister | 2 | 1954 - 1955 |
| One Step Dance Band | 1 | |
| One Touch Of Venus Orchestra | 2 | 1944 |
| Onedia And Colorado Cowhands | 1 | 1953 |
| Oneida And Colorado Cowhands | 1 | 1953 |
| Onelia Fineschi, Francesco Albanese | 1 | 1950 |
| Onésime Grosbois | 1 | 1956 |
| Onie Wheeler | 5 | 1953 - 1956 |
| Onie Wheeler And His Ozark Boys | 1 | 1953 |
| Onis Harrison And The Winter Garden Quartet | 1 | |
| Onni Gideon | 4 | 1954 - 1956 |
| Onni Gideonin Aloha-Yhtye | 1 | 1954 |
| Onni Laihanen | 1 | 1937 |
| Onyina's Guitar Band | 1 | 1959 |
| Oonah Mairs And Norman Williams | 1 | 1925 |
| Oonah Mairs And Tom Barratt | 1 | 1925 |
| The Opal And Pearl Dance Orchestra | 1 | 1930 |
| Opal Military Band | 1 | 1916 |
| The Opals | 2 | 1954 |
| Opera House Orchestra | 1 | 1925 |
| The Opera Orchestra, Berlin-Charlottenburg | 1 | 1930 |
| Opera-Comique Orchestra | 3 | 1928 |
| Operans Solist-Orkester | 1 | 1931 |
| Operaphone Band | 3 | 1916 - 1917 |
| Opezians Sensation Dance Orchestra | 1 | 1923 |
| Oppenheim's Benjamin Franklin Hotel Dance Orch. | 1 | 1928 |
| Die Optimisten | 2 | 1953 |
| Ora Alexander | 1 | |
| Ora Brown | 1 | 1927 |
| Oral Roberts | 2 | 1957 |
| Oral Roberts And The Abundant Life Quartet | 1 | 1957 |
| Oral Roberts' Radio Quartet | 1 | 1957 |
| Oral Scheer | 1 | 1955 |
| Oran "Hot Lips" Page | 5 | 1940 - 1941 |
| Oran Campbell | 1 | 1928 |
| Oran Cummins And The Roving Cowboys | 1 | |
| Orange Juice Quartet | 1 | 1958 |
| Oratorio Chorus | 1 | 1916 |
| Orch. Jean Yatove | 1 | |
| Orch. Lud Gluskin | 1 | 1928 |
| Orch. Ruhlmann | 1 | 1924 |
| Orch. Symph. Edison Bell, Paris | 1 | 1929 |
| Orch. Syncopated Six | 2 | 1923 |
| Orchesta Ferera's Golden Hawaiians | 1 | |
| Orchester | 60 | 1907 - 1927 |
| Orchester Cedric Dumont | 2 | |
| Charlie Bakeš Orchester | 1 | 1953 |
| Orchester Des Deutschen Opernhauses Berlin, Walter Lutze | 2 | 1938 - 1939 |
| Orchester Der Scala Berlin | 2 | 1934 - 1936 |
| Orchester Der Staatsoper, Berlin | 1 | 1933 |
| Orchester Der Städtischen Oper, Berlin | 1 | 1952 |
| Orchester der Volkspolizei Berlin | 6 | |
| Orchester Der Wiener Staats-Oper | 2 | 1929 - 1938 |
| Orchester Des "Palais De Danse" | 1 | 1913 |
| Orchester Des Deutschen Opernhauses | 1 | 1941 |
| Orchester Des Deutschen Opernhauses, Berlin | 2 | 1936 |
| Chor Und Orchester Des Festspielhauses Bayreuth | 1 | 1936 |
| Orchester Des Festspielhauses Bayreuth | 1 | 1936 |
| Orchester Des Hauses Hohner Trossingen | 1 | 1951 |
| Orchester Des Kaiser Franz Regiments Berlin | 1 | |
| Orchester Des National-Theaters In Prag | 1 | |
| Orchester Dir. Jose Sentis | 1 | |
| Orchester Erich Börschel mit Caterina Valente und John Paris | 1 | 1955 |
| Orchester Ernst Jäger | 1 | |
| Orchester Ferdy Kauffman | 1 | 1934 |
| Orchester Jenö Fesca | 3 | 1927 - 1928 |
| Orchester Kurt Edelhagen | 1 | 1956 |
| Orchester Kurt Graunke | 2 | 1955 |
| Orchester Ludwig Rüth | 1 | 1937 |
| Orchester Mit Chor | 1 | |
| Orchester mit Gesang | 5 | 1912 |
| Orchester Mit Glocken | 4 | 1910 - 1929 |
| Orchester Mit Kino-Orgel | 1 | |
| Orchester mit Kirchenglocken | 3 | 1927 |
| Orchester Mit Kleinen Glöckchen | 1 | |
| Orchester Mit Refrain | 1 | |
| Orchester Mit Refraingesang | 2 | |
| Orchester Nullo Romani | 1 | 1925 |
| Orchester Of Steff Lindemann | 1 | 1956 |
| Orchester Ratschikoff | 1 | 1927 |
| Orchester Rudolf Thiele | 1 | 1908 |
| Orchester Und Chor Der Reichsoper Berlin | 1 | 1937 |
| Orchester Und Chor Des Deutschen Opernhauses, Berlin | 1 | 1940 |
| Orchester Von "Palais De Danse" Berlin | 1 | 1912 |
| Orchester Will Glahé | 15 | 1936 - 1949 |
| Orchestr Esty | 1 | 1942 |
| Orchestr Se Zpěvem | 2 | 1913 |
| Orchestra | 8 | 1908 - 1949 |
| Orchestra Alvarez | 1 | |
| Orchestra And Chorus Of The Central College Of Drama | 1 | 1950 |
| Orchestra And Male Chorus | 2 | 1949 |
| Orchestra Beka | 1 | |
| Orchestra Columbia | 2 | 1940 - 1948 |
| Orchestra Conducted By Leighton Lucas | 1 | 1957 |
| Orchestra Conducted By Malcolm Lockyer | 1 | 1960 |
| Orchestra Conducted By Philip Green | 1 | 1954 |
| Orchestra Conducted By Ray Heindorf | 1 | 1958 |
| Orchestra Conducted By Will Reed | 1 | 1939 |
| Orchestra Constantin Bîrsan | 1 | 1959 |
| Orchestra Da Ballo Eros | 1 | |
| Orchestra Da Ballo Silvester | 1 | 1937 |
| Orchestra Da Camera Del R. Conservatorio Di S. Pietro A Majella - Napoli | 1 | |
| Orchestra Danubio Azzurro | 1 | |
| Orchestra De La Societe Des Concerts Du Conservatoire, Bruno Walter | 1 | 1938 |
| Orchestra De Mandoline Vasile Nichitin | 1 | 1960 |
| Orchestra De Muzică Populară Electrecord | 1 | 1957 |
| Orchestra De Suflători | 1 | 1959 |
| Orchestra Degli Arditi | 2 | 1921 |
| Orchestra Dei Sei Amici | 1 | |
| Orchestra Del Mestre | 1 | 1942 |
| Orchestra Della Canzone Diretta Dal M.o Angelini | 1 | 1944 |
| Orchestra Della Fiaschetteria Toscana | 2 | |
| Orchestra Des Concerts Cologne With Yehudi Menuhin | 4 | 1938 |
| Orchestra Des Grossen Schauspielhauses. | 2 | 1948 - 1950 |
| Orchestra Di Piramo | 1 | |
| Orchestra Di Tanghi Morres | 1 | 1952 |
| Orchestra Directed By C. A. Chernetsky | 1 | |
| Orchestra Durium | 1 | 1932 |
| Orchestra Eduardo Bianco | 1 | 1928 |
| Orchestra Electrecord | 5 | 1940 - 1961 |
| Orchestra Ferraro | 1 | 1929 |
| Orchestra Ferruzzi | 1 | 1932 |
| Orchestra Filarmonico Di Berlino | 1 | |
| Orchestra Genaro Esposito | 1 | |
| Orchestra Grigoraș Dinicu | 10 | 1908 - 1930 |
| Orchestra Jazz Musette Georges Sellers | 1 | 1934 |
| Orchestra Kramer | 1 | |
| Orchestra M.o Dino Olivieri | 1 | 1937 |
| Orchestra Mascotte | 35 | 1928 - 1950 |
| Orchestra Massara | 1 | 1952 |
| The Orchestra Of H.M. Royal Marines (Portsmouth Division) | 4 | 1940 - 1942 |
| The Orchestra Of La Scala Theatre, Milan | 2 | 1933 - 1934 |