Meaning not yet researched.
Kailo: US boys given the name each year, 1880 to 2025, from Social Security card applications. 79 in 2025. Its best rank was #1,766 in 2022.
US births per year · SSA card applications
Peaked at #1,766 in 2022; #1,953 in 2025. Every baby recorded as Kailo in 2025 was a boy.
Baby name · US data 1880–2025
#1,953 for US boys in 2025. Its best year was 2022, at #1,766.
Hover, tap or use the arrow keys for any year. Years with fewer than five babies of a sex are not published by SSA and show as zero.
Kailo: US boys given the name each year from 1880 to 2025. 79 boys in 2025. Peak: #1,766 in 2022 · most boys in one year: 94 (2022).
In 2025, 79 US boys were named Kailo, making it the 1,953rd most common boys’ name of the year, up 293 places from #2,246 in 2024. That is 15 more than the 64 boys named Kailo in 2024. Its best rank for boys was #1,766, reached in 2022. That year also had the most boys given the name: 94. For comparison, it was unranked (under five boys) in 2015 and unranked in 1950.
Social Security card records list Kailo in 13 years of the 146 from 1880 to 2025, starting in 2010 with 6 babies. In all, 600 US babies have been given the name, 2.8% of them girls and 97% boys. Its busiest decade was the 2020s, with 501 babies named Kailo.
Over the 10 years from 2016 to 2025, 566 US boys were named Kailo; the busiest of those years was 2022, with 94. In 2025 that was about 1 in 21,621 of the boys in SSA’s list for the year.
Among the states, Kailo ranked highest in Pennsylvania in 2025, at #1,332 for boys there. It was not in the top 100 of any state. Rarer spellings such as Kalo, Kahlo and Kailoh are summarised on this page.
Meaning not yet researched.
We publish a meaning only with a cited source and a confidence label, and never generate one. Meanings are being researched for the most common names first.
No related spellings pass our data threshold.
Rare spellings summarised here: Kalo (103), Kahlo (95), Kailoh (66), Kaylo (42), Kalu (38), Kaelo (35), Kaillou (25), Cailo (20), Kallo (12).
Numbers are all-time US births. Links come from Wikidata’s “said to be the same as” (P460, CC0) and our spelling rule: at most two letters different, with the same sound pattern.
No nicknames listed for Kailo in the open dataset we use.
Source: carltonnorthern/nicknames (Apache-2.0).
US boys. Rank within each state. SSA leaves out states where fewer than five boys got the name, so 45 are not listed.
| State | Births 2025 | Rank 2025 | Rank 2015 |
|---|---|---|---|
| Pennsylvania | 5 | #1,332 | — |
| Ohio | 5 | #1,372 | — |
| Florida | 7 | #1,547 | — |
| California | 9 | #1,752 | — |
| New York | 5 | #1,895 | — |
| Texas | 5 | #2,765 | — |
Births and national rank for each year SSA lists the name, newest first.
About the data: counts are Social Security card applications for US births, for names given to at least five babies of a sex in a year (SSA, names.zip, public domain). Ranks follow SSA’s own order: most births first, ties alphabetical. Files retrieved 2026-10-05 (checksum on our sources page).