The baby name Gillermo appears in baby name data for the United States from 1923 to 1993. It was most popular in 1947 with 15 babies given the name.
Over the period shown, Gillermo has stayed at a similar level of popularity.
| Year | Count |
|---|---|
| 1923 | 5 |
| 1924 | 5 |
| 1925 | 5 |
| 1927 | 5 |
| 1929 | 6 |
| 1939 | 6 |
| 1947 | 15 |
| 1949 | 6 |
| 1972 | 6 |
| 1985 | 5 |
| 1993 | 8 |