Kain
Boy name · #1735 in 2025 · Very rare
In 2025, 94 baby boys were named Kain, placing it at #1735 in the official national rankings. A decade ago it stood at #1388, so the name has been falling over the past ten years. Roughly one in every 19,149 boys born in 2025 was named Kain.
The 52-year story
Kain first appears in the Social Security records in 1973, when 9 boys received the name. Its peak came in 2016, when 180 boys were named Kain — good for #1090 that year. Today's parents encounter it on its way down the popularity curve, which for many parents is exactly the appeal. Following the curve matters more than today's snapshot: a name's position on its rise-peak-decline arc is the best predictor of how common it will feel in a kindergarten class five years from now.
Babies named Kain per year. Source: SSA.
Unlock the 5-year forecast and compare Kain against up to 5 other names.
Uniqueness: will there be another Kain in class?
On our rarity read — which blends how common Kain is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Kain will likely be the only one in the room, with the occasional spelling-out as the price.
Where Kain is most common
State-level data for Kain is too sparse in 2025 to rank by rate — in most states its count falls below the SSA's per-state reporting threshold (counts under 5 are withheld).
Names like Kain
Statistically, parents drawn to Kain tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Cain, Kyrin, Rain, Hussain, and Kylin.
CainKyrinRainHussainKylinKalvinKorbinTorin
Rank history (last 25 years)
| Year | Babies named Kain | Rank |
|---|---|---|
| 2025 | 94 | #1728 |
| 2024 | 110 | #1573 |
| 2023 | 104 | #1650 |
| 2022 | 102 | #1678 |
| 2021 | 141 | #1320 |
| 2020 | 107 | #1539 |
| 2019 | 127 | #1394 |
| 2018 | 143 | #1282 |
| 2017 | 168 | #1132 |
| 2016 | 180 | #1090 |
| 2015 | 124 | #1388 |
| 2014 | 152 | #1205 |
| 2013 | 136 | #1277 |
| 2012 | 136 | #1285 |
| 2011 | 127 | #1331 |
| 2010 | 124 | #1368 |
| 2009 | 109 | #1518 |
| 2008 | 113 | #1452 |
| 2007 | 103 | #1527 |
| 2006 | 91 | #1596 |
| 2005 | 91 | #1546 |
| 2004 | 71 | #1763 |
| 2003 | 108 | #1296 |
| 2002 | 98 | #1346 |
| 2001 | 96 | #1345 |
Frequently asked questions
Is Kain a popular boy name?
Kain ranked #1735 among boys in 2025 with 94 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #1388.
When was the name Kain most popular?
Kain peaked in 2016, when 180 American boys received the name (ranked #1090 that year). Since 2016 the name has declined from that high.
How rare is the name Kain?
In 2025, roughly 1 in 19,149 newborn American boys was named Kain. On our rarity scale (rarity blended with momentum) we classify it as "very rare".
Data source: U.S. Social Security Administration name statistics, 1880–2025, national and state files. Counts reflect Social Security card applications; names with fewer than 5 occurrences in a state-year are suppressed by the SSA.