BabyNameLens · Girl names · Boy names
“From Japanese Kasai — a surname and place name” — Japanese (surname/place name, multiple kanji) origin
Boy's name · #639 in the US (2025) · Trending
Kasai is moving up the charts. First recorded in 1996, it stood at #639 in 2025 — its strongest showing yet; about 1,100 boys have been named Kasai along the way.
Appears in 2020-2025 birth records of 17 states. See the full state-by-state map on this page.
Similar names: Khaza · Calloway · Cassiel · Jasai · Akari · Asai
Browse more boy names — popularity, trends and eras for 5,700+ American names, free.