Kosmo is a very rare boys' name that peaked in 2025 and has grown less common since.
Kosmo is a boy name. In 2025 it ranked #7,024 for boy births in the United States (and #14,735 across all names), given to 12 babies. Kosmo first appears in 2022 and peaked in 2025 (12 births).
Boys named Kosmo per year · hover for count and boys rank · Source: U.S. Social Security Administration, national data 2022–2025 · U.S.+territories from SSA territory files (1998–2025)