Recent in Baby
When Baby Resists SolidsWhen Baby Resists SolidsBaby Biting TipsBaby Biting Tips5 Tips To Help Prevent Highchair Injuries5 Tips To Help Prevent Highchair InjuriesWhen Baby and Pet MeetWhen Baby and Pet MeetTreatments for ColicTreatments for ColicBaby Milestones – The First YearBaby Milestones – The First YearTips for Relieving Teething PainTips for Relieving Teething PainBenefits of Making Your Own Baby FoodBenefits of Making Your Own Baby Food

Home › Baby Names Directory › Lennan

Lennan

♀ Girl

Pronounced LEN-an /ˈlɛn.ən/High

Meaning: From the Irish leannan, 'a sweetheart; a lover; a beloved companion'; also a spelling of Lennon; used for both sexes; routes layeredLow

In 30 seconds: A sweetheart; a lover: Lennan is Irish. Crisp, modern, and warm. Used for both sexes.
💕 Browse more names
Origin LowIrish
MeaningFrom the Irish leannan, 'a sweetheart; a lover; a beloved companion'; also a spelling of Lennon; used for both sexes; routes layered
U.S. rank (2025)#14188 ↘ Falling
2025 U.S. births6 girls (0.00% of U.S. girls)
Peak year2016
Total births (all-time)≈ 146

Popularity in the U.S. · SSA data

peak 201620132025

U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.

SSA data updated May 2026. How we source & verify this data.

History & Origin

Lennan comes from the Irish leannan, 'a sweetheart; a lover; a beloved companion'; also a spelling of Lennon (routes layered, which we note). Used for both sexes, here for a girl (slug distinguished; said 'LEN-an').

In the U.S. it appears as a modern Irish given name for both sexes. Rare, a-sweetheart at the root, and crisp.

Did you know? Lennan comes from the Irish leannan, 'a sweetheart; a lover' — a crisp name, used for both sexes (the routes are layered, which we note; said 'LEN-an').
Overall data confidence 30%
References — Lennan — Irish; unisex; routes layered

Variations

LennonLennanaLenan

Nicknames

Lenny

Famous Bearers

  • Famous bearers coming soon.

If you like Lennan…

Lennon— a related spelling
Lennox— a sound-neighbor Len- name
Brennan— a fellow Irish -nnan name
Kennan— a companion Irish -nnan name

Explore names like Lennan

By themeuncertainunisexirish
By meaningLove

All themes →All meanings →All origins →

Frequently Asked

What does the name Lennan mean?

Lennan is Irish for 'a sweetheart; a lover' (from leannan); used for both sexes; here for a girl. The routes are layered.

How do you pronounce Lennan?

It's said LEN-an /ˈlɛn.ən/ — two syllables, stress on the first.

Is Lennan a boy or girl name?

Lennan is used for both sexes; this page covers its use as a girl's name.

How popular is Lennan?

Lennan is a very rare name in the U.S.

💬 Ask Nia