Hillis
Boys' nameMeaning not yet documented
Hillis has been given to 421 babies in the U.S. since 1912. It was used fewer than 5 times in 2025, so it doesn't appear in the latest year's list — today it's a genuinely uncommon pick. Its peak year was 1919, with 16 recorded.
Babies named Hillis, 1986
1 in 711,000
Hillis over time, 1880–2025
Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.
How common is Hillis?
Hillis had fewer than 5 recorded uses in 2025, so these figures use 1986, the last year it was published.
- Among all babies, 1986
- 1 in 711,000
- 5 of 3,556,724 births
- Among boys only
- 1 in 368,000
- <0.01% of boys
- Rank, 1986
- Unranked
- Fewer than 5 uses
- Coin-flip room size
- 493,068 kids
- Even odds of a second one
Where Hillis sits on the popularity scale
Chance at least one other child shares the name
If the other children were drawn at random from the 1986 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.
Put another way: gather 493,068 children born in 1986 and it's an even bet that one of them is another Hillis. In a class of 30 the chance is Under 1%.
When Hilliss were born
Half of everyone ever recorded as Hillis was born before 1929 — so the typical Hillis is around 96 today.
- Biggest decade
- 1920s
- 32.4% of all use
- Born in the last 25 years
- 2.7%
- Mostly a past generation
- Recorded since 1950
- 35
- People you could plausibly meet
1920s — 32.4% of all recorded uses (132).
Is Hillis rising or falling?
Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.
- Rank vs 1 year ago
- —
- Not ranked then
- Rank vs 5 years ago
- New entry
- Not ranked then
- Rank vs 10 years ago
- —
- Not ranked then
- Births vs 10 years ago
- —
- Not published both years
- Share of its own peak
- 0%
- Peak was 1919 (16)
- Years since peak
- 106
- Years
- Year-to-year steadiness
- Volatile
- 36.6% average annual change
Spellings of Hillis
Hillis is not the most common spelling — Willie is, with 48.6% against Hillis's 0.04%.
Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.
Where Hillis is used
Across 1910–2025, Hillis was most concentrated in Kentucky — about 1 in — boys, against 1 in 623,873 across all states with data. It was least common in Missouri (1 in —).
Shading is the share of that state's recorded boys given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings. Hillis has too little recent state data to map, so this covers all years from 1910.
Hillis by the numbers
The raw record for each sex the name is used for.
As a boy's name
Names similar to Hillis
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Hillis
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.