Kain Boy
How popular is Kain?
#1,728 boy name in 2025
94 baby boys were named Kain in the US in 2025, making it the 1728th most popular boy name.
Kain popularity over time
| Rank in 2025 | #1,728 for boys (▼ 155 from 2024) |
|---|---|
| Babies in 2025 | 94 boys |
| 10-year trend | Falling (-24% babies vs 2015) |
| Earlier ranks | #1,388 in 2015, #1,539 in 2020 |
| Peak year | 2016 (180 boys) |
| Highest rank | #1,090 in 2016 |
| First recorded | 1973 |
| Boys vs girls (last 10 years) | 100% boys, 0% girls |
| Chance a classmate shares it | 0.1% in a class of 25 kids born in 2025 |
Kain counting every spelling
Social Security counts each spelling as its own name. Adding together the spellings that sound alike, the Kane family of names ranked #276 for boys in 2025 (#261 the year before), with 1,269 babies in all.
| Spelling | Boys in 2025 | Share |
|---|---|---|
| Kane | 695 | 55% |
| Cain | 185 | 15% |
| Kaine | 126 | 10% |
| Kain | 94 | 7% |
| Kayne | 49 | 4% |
| Caine | 54 | 4% |
| Can | 11 | 1% |
| Kayn | 20 | 2% |
| Cayne | 13 | 1% |
| Cane | 22 | 2% |
Spellings are grouped by how they sound, using our own rules, so a few groupings may not match how your family says the name.
Where Kain is most popular
Babies named Kain per 1,000 boys born in each state, 2021 to 2025. Darker means more common.
- Louisiana: 0.2 per 1,000 (16 boys)
- Michigan: 0.1 per 1,000 (17 boys)
- Texas: 0.1 per 1,000 (72 boys)
- Wisconsin: 0.1 per 1,000 (7 boys)
- North Carolina: 0.1 per 1,000 (15 boys)
Kain by decade
| Decade | Baby boys | Best rank |
|---|---|---|
| 1970s | 43 | #2,797 |
| 1980s | 87 | #3,629 |
| 1990s | 560 | #1,246 |
| 2000s | 985 | #1,250 |
| 2010s | 1,417 | #1,090 |
| 2020s | 658 | #1,320 |
Boy names about as popular as Kain
Questions
- Is Kain a boy or girl name?
- Kain is mostly a boy name. Over the last 10 years, 100% of babies named Kain were boys.
- How popular is the name Kain?
- 94 baby boys were named Kain in the US in 2025, making it the 1728th most popular boy name.
- When was Kain most popular?
- Kain peaked in 2016, when 180 boys were given the name. Its highest rank was #1,090 in 2016.
- How many people are named Kain?
- 3,750 babies have been named Kain in the US since 1880. We estimate about 3,699 of them are alive in 2026, with a median age of 15.
- Where is Kain most popular?
- From 2021 to 2025, Kain was most common in Louisiana, at 0.2 of every 1,000 boys born there.
Source: Social Security Administration baby name data, 1880 to 2025 (names given to at least 5 babies of a sex in a year). Living-people and median-age figures are our estimates using US life tables. How we calculate.