Kailo
Boy name · #1957 in 2025 · Very rare
How old is the name Kailo? In official American birth records, Kailo has been tracked continuously since 2010, giving it 15 years of documented American history.
In 2025, 79 baby boys were named Kailo, placing it at #1957 in the official national rankings. It has appeared in the national data since 2010. Roughly one in every 22,785 boys born in 2025 was named Kailo.
Babies named Kailo per year. Source: Official national birth records.
The 15-year story
Kailo first appears in the Social Security records in 2010, when 6 boys received the name. Its all-time peak is essentially right now: 2022, with 94 babies and a rank of #1760. Names at their peak can keep climbing — or be one trend cycle from the long slide that eventually hits most popular names. 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.
Unlock the 5-year forecast and compare Kailo against up to 5 other names.
Uniqueness: will there be another Kailo in class?
On our rarity read — which blends how common Kailo is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Kailo will likely be the only one in the room, with the occasional spelling-out as the price.
Where Kailo is most common
State-level data for Kailo 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 Kailo
Statistically, parents drawn to Kailo tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Kamilo, Oslo, Nilo, Melo, and Khylo.
KamiloOsloNiloMeloKhyloAstroKhysonShilo
Rank history (last 25 years)
| Year | Babies named Kailo | Rank |
|---|---|---|
| 2025 | 79 | #1942 |
| 2024 | 64 | #2236 |
| 2023 | 90 | #1787 |
| 2022 | 94 | #1760 |
| 2021 | 85 | #1823 |
| 2020 | 72 | #1977 |
| 2019 | 34 | #3347 |
| 2018 | 23 | #4354 |
| 2017 | 10 | #7546 |
| 2016 | 15 | #5789 |
| 2014 | 5 | #12108 |
| 2011 | 6 | #10808 |
| 2010 | 6 | #10766 |
Frequently asked questions
How old is the name Kailo?
In official American birth records, the name Kailo first appeared in 2010 (over 15 years ago), when 6 newborn boys received the name. It has been tracked in modern national records for 15 years.
Is Kailo a popular boy name?
Kailo ranked #1957 among boys in 2025 with 79 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked outside the reported range.
When was the name Kailo most popular?
Kailo peaked in 2022, when 94 American boys received the name (ranked #1760 that year). That peak is current — the name is at or near its all-time high right now.
How rare is the name Kailo?
In 2025, roughly 1 in 22,785 newborn American boys was named Kailo. On our rarity scale (rarity blended with momentum) we classify it as "very rare".
Data source: Official American birth records, 1880–2025, national and state files. Counts reflect registered birth records for American families.