Given name & surname
Lenni
“having the strength of a lion”
Lenni is a variant of Leonard. One German interpretation is “having the strength of a lion.”
Meaning & origin
What it means
Lenni is a variant of Leonard. One German interpretation is “having the strength of a lion.”
Explained through its name family
Where it comes from
Lenni is a variant of Leonard. Leonard has been associated with Old French and Germanic naming traditions.
Explained through its name family
The story
Published U.S. birth records include this spelling as early as 1966. This is the earliest published observation available here, rather than a date for the name’s origin. Lenni is a variant of Leonard. The history of Leonard gives this family its wider story. Use of Leonard was revived during the 19th century.
Combines direct and name-family evidence
Lenni through the years
- Babies since 1880
- 357
- 16 boys · 341 girls
- Most popular year
- 2023
- 52 babies
- 2025
- 46
- #3,366 for girls
- 2021–25 vs 2016–20
- +86%
- Rising fast
Where it’s given
By the numbers
In 2025, this name appeared in 46 U.S. birth records for girls, ranking No. 3,366 among girls’ names. Average annual use for girls was 98.1% higher in 2021–2025 than in 2016–2020. In 2025, Michigan and Pennsylvania shared the largest reported state-level birth count for girls with this name (5 each). Published U.S. population figures for this spelling include 341 as a first name in 2020.
From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.
Lenni’s family of names
Lenni has a related form in Leonard. In Finnish usage, Lenni has a conventional equivalent in the English form Leonard. In Finnish usage, Lenni has a conventional equivalent in the Portuguese form Leonardo.
Inner ring: spellings · middle: nicknames and forms · outer: across languages.
Around the world
Lenni has relatives in 4 languages.
4 related names in 4 languages. Point at a dot, or tab to the map and use the arrow keys.
Nicknames & forms 1
Diminutives, pet forms, short forms and variants used alongside the name.
Spellings & scripts 1
The same name written differently, including transliterations into other scripts.
Across languages 7
Equivalents and cognates in other languages, plus older forms it grew from.
People named Lenni
- Lenni-KimCanadian singerborn 2001
- Lenni HämeenahoFinnish ice hockey playerborn 2004
- Lenni BrennerAmerican activistborn 1937
- Lenni NouchiFrench rugby Union playerborn 2003
Listed by how widely each person is written about, which says nothing about the name itself.
Similar names
If you love Lenni, these share its style, era, origin or sound, from outside its own family.