MallowbyNames

Lennin

LEN-in · Surname transferred to a given name, likely of English origin.

2025 rank (boys)
#8,910
Babies named in 2025
8
Peak popularity
2019
2025 frequency
1 in 213,510 boys
Usually for
Boys
Trend
Declining since 2018

Declining since 2018, #8,910 for boys today.

Popularity of Lennin since 1981

Babies named Lennin per year in U.S. Social Security records.

59141990200020102020Most births 2016Boys
Data table (by decade)
DecadeBoys
1980s6
1990s38
2000s96
2010s100
2020s51

Meaning & origin

Lennin is a rare given name in the United States, first recorded in 1981. It reached its peak popularity in 2019, with about 1 in 213,510 newborns receiving the name that year. Since then, its usage has been falling, dropping rank after 2018. The name is likely a variant of Lennon, an Irish surname that became familiar globally through John Lennon of the Beatles. This modern adoption as a first name appeals to parents seeking a surname-style name with musical associations. Lennin remains uncommon, with no top states indicating a regional concentration.

Lennin may be a variant of Lennon, an Irish surname derived from Ó Leannáin, meaning 'descendant of Leannán' (lover). Alternatively, it could be an Anglicized form of the Scottish surname MacLennan. As a given name, it gained limited use in the late 20th century, possibly influenced by the surname of John Lennon.

Nicknames & variants

Nicknames: Len, Lenny

Variants: Lennon, Lenin

Sibling names for Lennin

Names that share Lennin's style, for a brother or sister.

Sisters: Evelyn, Nora, Clara, Stella, Maeve

Brothers: Declan, Rowan, Finn, Leo, Owen

A parent animal hugging its little one, the personalized name page

L is for Lennin, our favorite little boy.

L is for Lennin…”

In a Mallowby alphabet book, Lennin's letter becomes Lennin's page: hand-illustrated, printed hardcover or paperback, made just for them.

Make Lennin's book

Books for siblings or grandkids? The second book is 15% off.

Questions parents ask

What does the name Lennin mean?
Lennin is a surname-derived name, possibly a variant of Lennon, which means 'lover' from the Irish Ó Leannáin.
How popular is the name Lennin currently?
In 2025, Lennin ranked 8910 in the United States, with about 1 in 213,510 baby boys given the name.
Is Lennin a boy or girl name?
Lennin is almost exclusively used as a boy's name, based on Social Security data.