| Author | Nationality | Year | |
|---|---|---|---|
| Obie Trice | American | 1977 | |
| Olivia Newton-John | 1948 | ||
| Ornette Coleman | American | 1930 | |
| Oscar Hammerstein II | American | 1895 - 1960 | |
| Oscar Peterson | Canadian | 1925 - 2007 | |
| Otis Blackwell | American | 1932 - 2002 | |
| Otis Rush | American | 1934 | |
| Otis Williams | American | 1939 | |
| Ozzy Osbourne | English | 1948 | |
