Jaap is a very rare girls' name that peaked in 2022 and has grown less common since.
Jaap is a girl name. In 2025 it ranked #15,863 for girl births in the United States (and #26,303 across all names), given to 5 babies. Jaap first appears in 2022 and peaked in 2022 (5 births).
Girls named Jaap per year · hover for count and girls rank · Source: U.S. Social Security Administration, national data 2022–2025 · U.S.+territories from SSA territory files (1998–2025)