Kestyn is a very rare boys' name that peaked in 2018 and has since faded.
Kestyn is a boy name. In 2025 it ranked #11,381 for boy births in the United States (and #23,447 across all names), given to 6 babies. Kestyn first appears in 2014 and peaked in 2018 (11 births).
Boys named Kestyn per year · hover for count and boys rank · Source: U.S. Social Security Administration, national data 2014–2025 · U.S.+territories from SSA territory files (1998–2025)