How to say it
LEE · um
ˈli.əm
Masculine
Liam
Resolute protector
What it means
An Irish short form of Uilliam, the Irish answer to William. The Germanic roots are wil (will) and helm (protection). A steady guardian whose decision, once made, holds.
Liam started as the everyday short form of Uilliam, the Irish reshaping of Norman William after the conquest of 1066. The Germanic root Willahelm (will plus helmet) gave Europe a thousand years of kings and conquerors, but Liam shed the gravitas on its way to the modern era. It went global from the 1990s on and has been the most popular US boys' name almost every year since 2017.
How to spell Liam
The standard spelling is Liam. Common variants include Uilliam, William, Will, but Liam is the most widely used form.
Popularity over time
peaked at #1 in 2017, currently #1 in 2025.
Source: U.S. Social Security Administration, names given to at least 5 babies in a year, 1880–2025. Reviewed July 2026. See where the names are moving
Heads-up notes
- Pop culture
Three famous Liams in current English-language usage (Neeson, Hemsworth, Payne). Common enough that the name reads as its own, not as a reference.
Who's worn it
Historical figures, characters, and public faces who share the name. The cultural surface, for whatever weight you want to give it.
- Liam Neeson Northern Irish actor, Schindler's List and Taken
- Liam Hemsworth Australian actor, The Hunger Games
- Liam Payne One Direction singer
- Liam Gallagher Oasis frontman
Spelling variants
- Uilliam
- William
- Will
Names with the same feeling
See Liam from another angle
By meaning
By style
Common questions
- What does the name Liam mean?
- An Irish short form of Uilliam, the Irish answer to William. The Germanic roots are wil (will) and helm (protection). A steady guardian whose decision, once made, holds.
- What does Liam mean in Irish?
- In Irish, Liam means "Resolute protector." Liam started as the everyday short form of Uilliam, the Irish reshaping of Norman William after the conquest of 1066. The Germanic root Willahelm (will plus helmet) gave Europe a thousand years of kings and conquerors, but Liam shed the gravitas on its way to the modern era. It went global from the 1990s on and has been the most popular US boys' name almost every year since 2017.
- Is Liam short for Uilliam?
- Yes. Liam is a short form of Uilliam, and it carries the same meaning, "Resolute protector." These days many parents use Liam as a given name in its own right, not only as a nickname.
- How do you pronounce Liam?
- Liam is pronounced ˈli.əm. Say it as LEE-um, with the stress on the "lee" syllable.
- How do you spell Liam?
- The standard spelling is Liam. Common spelling variants include Uilliam, William, Will.
- Is Liam a boy or girl name?
- Liam is traditionally a masculine name.
- How popular is the name Liam?
- Liam ranked #1 in the U.S. in 2025, according to Social Security Administration data.