Sixx is a very rare boys' name that first appeared in 2023 and is quickly gaining ground.
Sixx is a boy name. In 2025 it ranked #13,620 for boy births in the United States (and #28,023 across all names), given to 5 babies. Sixx first appears in 2023 and peaked in 2023 (5 births).
Boys named Sixx per year · hover for count and boys rank · Source: U.S. Social Security Administration, national data 2023–2025 · U.S.+territories from SSA territory files (1998–2025)