Kalu is a very rare variant of Kale that peaked in 2020 and has grown less common since.
Kalu is a boy name. In 2025 it ranked #12,951 for boy births in the United States (and #26,634 across all names), given to 5 babies. Kalu first appears in 2008 and peaked in 2020 (8 births).
Boys named Kalu per year · hover for count and boys rank · Source: U.S. Social Security Administration, national data 2008–2025 · U.S.+territories from SSA territory files (1998–2025)