MallowbyNames

Lexii

LEK-see · A modern spelling variant of Lexi, itself a diminutive of Alexandra, meaning 'defender of mankind'.

Peak popularity
2013
Usually for
Girls
Trend
Declining since 2012

Declining since 2012.

Popularity of Lexii since 2009

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

9172620102020Most births 2013Girls
Data table (by decade)
DecadeGirls
2000s12
2010s155
2020s34

Meaning & origin

Lexii is a modern American respelling of the nickname Lexi, which itself derives from the classic Alexandra. The name first appeared in U.S. Social Security data in 2009, reflecting the early-2000s trend of creative spellings for familiar-sounding names. Its peak year was 2013, after which its usage began a steady decline, continuing through 2025. Despite its relatively recent arrival, Lexii has shown the typical trajectory of a fashionable spelling variant: a sharp rise followed by a gradual fall. The name is given almost exclusively to girls, and it remains a distinctly American coinage with little international usage. Its simple sound and familiar nickname potential keep it recognizable even as its popularity wanes.

Lexii is a contemporary respelling of Lexi, which emerged as a nickname for Alexandra (from Greek Alexandros, 'defender of men') and later became an independent given name. The variant spelling with double 'i' follows a trend of altering names to create a distinctive look, particularly in the United States during the early 2000s.

Nicknames & variants

Nicknames: Lex

Variants: Lexi, Lexie, Lexy

Sibling names for Lexii

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

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

L is for Lexii, our favorite little girl.

L is for Lexii…”

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

Make Lexii's book

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

Questions parents ask

What does the name Lexii mean?
Lexii is a modern spelling of Lexi, which is a short form of Alexandra. The meaning of Alexandra is 'defender of mankind'.
How popular is the name Lexii?
Lexii first appeared in U.S. birth records in 2009. It reached its peak popularity in 2013 and has been declining in use since 2012.
Is Lexii a boy or girl name?
Lexii is used almost exclusively for girls.