| 1904 | One Fine Day / Un Bel Di |
| LM | |
| M | Giacomo Puccini. From the opera Madama Butterfly. |
| L | Luigi Illica, Giuseppe Giacosa |
| 1957 | One Hand, One Heart |
| LM | |
| M | Leonard Bernstein. |
| L | Stephen Sondheim |
| 1932 | One Hour with You |
| LM | Leo Robin, Richard A. Whiting. |
| M | |
| L | |
| 1924 | One I Love Belongs to Somebody Else, The |
| LM | |
| M | Isham Jones. |
| L | Gus Kahn |