Kayser is a very rare boys' name that peaked in 2007 and has grown less common since.
Kayser is a boy name. In 2025 it ranked #9,320 for boy births in the United States (and #19,238 across all names), given to 8 babies. Kayser first appears in 2007 and peaked in 2007 (10 births).
Boys named Kayser per year · hover for count and boys rank · Source: U.S. Social Security Administration, national data 2007–2025 · U.S.+territories from SSA territory files (1998–2025)