The baby name Masayo appears in baby name data for the United States from 1914 to 1928. It was most popular in 1915 with 16 babies given the name.
Over the period shown, Masayo has stayed at a similar level of popularity.
| Year | Count |
|---|---|
| 1914 | 12 |
| 1915 | 16 |
| 1916 | 14 |
| 1917 | 10 |
| 1918 | 10 |
| 1919 | 16 |
| 1920 | 12 |
| 1922 | 14 |
| 1928 | 10 |