Baby Name Studio

Boy Name · Latin Origin

Leo

Top 500 · 3 letters · Lion

Among 2026's most-considered baby names, Leo keeps surfacing for the same reason: it travels well. At its root, Leo means "Lion", an old idea that still resonates with parents looking for substance under the sound. It comes out of the Latin naming tradition, where it accumulated centuries of literary and family use before crossing into broader English use. Our reviewers flagged Leo as a strong "first introduction" name: it teaches and reads cleanly in print, on a name tag, and over the phone.

Leo holds steady in the top 500 of US name rankings, which is to say it's familiar without being overused. The popularity curve has been notably even over the last decade, which means classmates named Leo are likely without it feeling overdone. Phonetically, Leo has the soft-consonant softness parents tend to gravitate toward, but with enough structure to age well. If Lee is already on your list, Leo belongs in the same conversation; the sections below dig into pronunciation, nicknames, and sibling fits.

Leo meaning, origin, and usage

Meaning: Lion

Origin: Latin naming roots help connect Leo to related Latin baby names.

Pronunciation: Baby Name Studio pronounces Leo as L·E·O, with 3 letters and a boy usage profile.

Popularity: According to Baby Name Studio's 2026 tracker, Leo is familiar without being overly common in the Top 500 tier.

Leo variants, nicknames, middle names, and sibling names

Frequently asked about Leo

What does the name Leo mean?

Leo means "Lion" and is of Latin origin.

What is the origin of Leo?

Leo originates in Latin naming tradition.

How do you pronounce Leo?

Leo has 3 letters and is most commonly stressed on the first syllable.

Is Leo a boy's or girl's name?

Leo is primarily used as a boy's name in US records.

How popular is Leo in 2026?

In our 2026 popularity tracker, Leo sits in the Top 500 tier — familiar without being overly common.

What names are similar to Leo?

Names that share Leo's sound and style include Lee, Lea, Le, Lewie, Lew.

What middle names pair well with Leo?

Good middle-name fits for Leo pair an opposite syllable rhythm: if Leo is short, lean longer (e.g. classical or three-syllable middles); if Leo is longer, a one-syllable middle keeps the full name from feeling heavy.

What are good sibling names for Leo?

Sibling names that pair naturally with Leo share its rhythm without rhyming — Lee, Lea, Le all sit comfortably alongside it on a shortlist.