Wataru is a very rare boys' name that was most common in the 1910s and has all but disappeared.
Wataru is a boy name. It last appears in U.S. records in 2015. Wataru was first reported in SSA data in 1915 and peaked in 1919 (15 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2015 | 5 | 5 | #13,939 |
| 2006 | 6 | 6 | #11,993 |
| 2003 | 5 | 5 | #12,686 |
| 2002 | 5 | 5 | #12,418 |
| 1999 | 6 | 6 | #9,858 |
| 1998 | 5 | 5 | #11,256 |
| 1997 | 6 | — | #9,217 |
| 1996 | 7 | — | #7,940 |
| 1994 | 7 | — | #7,738 |
| 1992 | 5 | — | #9,775 |
| 1991 | 6 | — | #8,201 |
| 1990 | 8 | — | #6,389 |
| 1989 | 8 | — | #6,210 |
| 1931 | 5 | — | #4,299 |
| 1928 | 9 | — | #3,067 |
| 1925 | 5 | — | #4,840 |
| 1923 | 12 | — | #2,609 |
| 1922 | 5 | — | #4,934 |
| 1921 | 5 | — | #4,952 |
| 1919 | 15 | — | #2,147 |
| 1915 | 7 | — | #3,377 |