The story of Hannan
Hannan is rare for girls in the United States, ranked #15,740 in 2025 with 5 babies given the name. It is currently declining compared with a decade ago.
Since 1978, 605 American babies have been named Hannan, about 78% girls and 22% boys, making it a genuinely unisex name. Its peak came in 1993, when 30 newborns received the name, the signature sound of the 1990s.
The chart above shows the full history: the popularity view (births per 1,000 babies) is the honest comparison across generations, since total US births have changed enormously since 1880. Switch to the rank view to see where Hannan stood among all girls' names in any year, or use the compare tool to plot it against other names.