Shinobu is a very rare name used for both girls and boys that was most common in the 1910s and has all but disappeared.
Shinobu is predominantly a girl name. It last appears in U.S. records in 1923. Shinobu was first reported in SSA data in 1919 and peaked in 1919 (5 births).
Girls named Shinobu per year · hover for count and girls rank · Source: U.S. Social Security Administration, national data 1919–1923 · U.S.+territories from SSA territory files (1998–1923) · SSA publishes a name only in years it was given to at least 5 babies, so a name may have been in use before — or between — the years shown here
Boys named Shinobu
Boys named Shinobu per year · hover for count and boys rank · Source: U.S. Social Security Administration, national data 1919–1923 · U.S.+territories from SSA territory files (1998–1923) · SSA publishes a name only in years it was given to at least 5 babies, so a name may have been in use before — or between — the years shown here