Sanjuan is a very rare boys' name that was most common in the 1970s and has all but disappeared.
Sanjuan is a boy name. It last appears in U.S. records in 2005. Sanjuan first appears in 1948 and peaked in 1974 (11 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2005 | 5 | 5 | #13,010 |
| 2002 | 5 | 5 | #12,170 |
| 2000 | 6 | 6 | #10,115 |
| 1996 | 6 | — | #8,829 |
| 1994 | 7 | — | #7,614 |
| 1991 | 5 | — | #9,366 |
| 1988 | 5 | — | #8,289 |
| 1986 | 7 | — | #5,823 |
| 1981 | 6 | — | #6,114 |
| 1980 | 6 | — | #6,110 |
| 1979 | 9 | — | #4,334 |
| 1978 | 11 | — | #3,569 |
| 1976 | 6 | — | #5,480 |
| 1974 | 11 | — | #3,287 |
| 1972 | 6 | — | #4,883 |
| 1971 | 7 | — | #4,307 |
| 1966 | 7 | — | #3,492 |
| 1959 | 5 | — | #4,484 |
| 1951 | 5 | — | #4,170 |
| 1950 | 9 | — | #2,743 |
| 1948 | 5 | — | #4,106 |