Willis
Meaning
from an English surname derived from Will (William, "will helmet"); famously borne by Willis Carrier, inventor of modern air conditioning
The story
Willis grew out of William as a surname, Will's son, so it carries the same old Germanic elements underneath: will and helmet. Fitting, then, that its most famous bearer protected us all from summer. Willis Carrier was a young engineer in 1902 when a Brooklyn printing plant asked him to tame the humidity that was warping its paper; his solution became modern air conditioning, and the company he co-founded went on to cool homes, hospitals, and whole cities. Few inventors have changed daily comfort so completely while remaining so anonymous. As a first name, Willis did its strongest work in the early twentieth century, peaking in the 1930s, then settled onto a long, level plateau where it remains: never fashionable, never gone, always quietly present in American records. That unshowy steadiness suits a name whose most famous owner simply made things work.
Willis around the world
One shared root links 12 names across 3 languages.
Shared root: from Germanic Willahelm, wil "will, desire" + helm "helmet, protection"
The constellation
Popularity, 1890–2024
Shape drawn from US Social Security baby-name records. Willis peaked in the 1890s and the 1930s in nearly equal measure.
See popularity in Brazil
Popularity in Brazil
1,361 people · the #6,714 first name in Brazil · about 1 in 142,857 · median age 34
Among people named Willis living in Brazil at the 2022 census, more were born in the 1980s than in any other decade.
The census also counted 23 born between 2020 and August 2022, too recent a span to chart.
Source: IBGE, Censo Demográfico 2022
When you meet Willis
People given the name Willis in the United States span the generations: the middle half were born anywhere from 1940 to 1989. Age is the one thing the name won't tell you.
Estimated from US Social Security birth registrations and typical lifespans; a rough guide, not a rule.
The Willis deep dive
Whether you’re naming a baby or exploring your own name’s history, this is a personal letter, not a list: where Willis truly comes from, how it traveled, and what a century of records reveals. If you have grown a tree on nametree, it also considers how Willis fits with your family’s names and surname.
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