A reliable meaning for Sixx isn’t established in our sources yet. Rather than guess, we show what is recorded: how the name is used, how often, and the names it’s connected to.
The story
Published U.S. birth records include this spelling as early as 2023. This is the earliest published observation available here, rather than a date for the name’s origin.
From dated birth records
Sixx through the years
Babies since 1880
10
10 boys · 0 girls
Most popular year
2023
5 babies
2025
5
#13,620 for boys
2021–25 vs 2016–20
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Too few births to compare
Sixx in U.S. Social Security birth records, 2023–2025, per million boys born. Years with fewer than five births for a sex are not published and appear as zero. Use the arrow keys to step through years.
By the numbers
In 2025, this name appeared in 5 U.S. birth records for boys, ranking No. 13,620 among boys’ names. The recent annual counts are too incomplete to establish a ten-year comparison.
From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.