Declining since 2005, #8,910 for boys today.
Popularity of Kayin since 1977
Babies named Kayin per year in U.S. Social Security records.
Data table (by decade)
| Decade | Girls | Boys |
|---|---|---|
| 1970s | 0 | 7 |
| 1980s | 0 | 0 |
| 1990s | 0 | 79 |
| 2000s | 45 | 261 |
| 2010s | 22 | 154 |
| 2020s | 15 | 47 |
Meaning & origin
Kayin is a modern American name first recorded in 1977, reflecting the trend of invented or creatively respelled names in the late 20th and early 21st centuries. It achieved its highest popularity in 2001, ranking that year as the 8,910th most common name for boys. The name has been declining in use since 2005, indicating a shift away from this particular coinage. While Kayin saw some use across the United States, it did not concentrate in any particular state, suggesting broad but low-level adoption. Its etymology remains uncertain, as it does not clearly derive from any established naming tradition, and may be a variation of similar-sounding names or an independent invention.
Kayin is a modern American coinage, first recorded in 1977. It may have been influenced by similar-sounding names like Kyan or Cayden, or derived from the Kayin people of Myanmar, though this connection is speculative. The name saw modest use in the United States, peaking in 2001 and declining thereafter.
Nicknames & variants
Nicknames: Kai
Variants: Kayan, Cayan
Sibling names for Kayin
Names that share Kayin's style, for a brother or sister.

