On record since 1991
Hennessey
Just 383 people named Hennessey appear in the U.S. record, all of them since 1991. That places it among the rarest names in this catalog. If you know a Hennessey, you may know the only one you will ever meet.
It peaked in the 2010s. Also spelled Hennessy.
U.S. RecordSocial Security, 1880 to 2024
All-time rank#21,092 of 104,819 names
People on record383
Peak decade2010s
First recorded1991