Compositori
9245 compositori
- Opazo Muñoz Mauricio (1969)
- Opitz Erich (1912)
- Oppedisano Marco (1971)
- Oppermann Rolf (1947)
- Oppo Franco (1935)
- Oram Peter (1947)
- Orbison Roy / DEES Bill
- Orbón Julián (1925-1991)
- Ore Osted
- Ore Østen Mikal (1967)
- Orekhov Sergei (1935)
- Orff Carl (1895-1982)
- Oribello Juanita Rukmini
- Oropeza Volcán Pedro (1872-1958)
- Orosco Maurício
- Orrego-Salas Juan (1919-2019)
- Orsi Andrea
- Orsini Alejandro
- Orsolino Federico (1918-1993)
- Ortega Blanco José (?-1977)
- Ortega Jesús (1935)
- Ortiz Anibal
- Ortiz Demetrio / MIRKIN Z.E.
- Ortiz Francisco
- Ortiz Francisco Juan
- Ortiz Julián (1891-?)
- Ortiz William (1947)
- Ortner Jakob (1879-1959)
- Ortolan Edson Tadeu (1958)
- Orts José Antonio (1955)
- Ortwein Andreas
- Osawa Kazuko (1926)
- Osborne Nigel (1948)
- Oser Martin (1955)
- Osipov N.
- Osokin Michail
- Ospald Klaus (1956)
- Ostendorf Jens-Peter (1944)
- Oswald John (1953)
- Otai Tsuyoshi