Declining since 2022, #2,304 for boys today.
Popularity of Lex since 1892
Babies named Lex per year in U.S. Social Security records. Raw births topped out in 2012, but relative to how few babies were recorded back then, Lex's real moment was 2021.
Data table (by decade)
| Decade | Boys |
|---|---|
| 1890s | 17 |
| 1900s | 12 |
| 1910s | 107 |
| 1920s | 163 |
| 1930s | 159 |
| 1940s | 162 |
| 1950s | 529 |
| 1960s | 316 |
| 1970s | 162 |
| 1980s | 164 |
| 1990s | 237 |
| 2000s | 713 |
| 2010s | 780 |
| 2020s | 474 |
Meaning & origin
Lex originated as a short form of Alexander, a Greek name meaning 'defender of men'. Though used as a nickname for centuries, Lex emerged as a standalone given name in the late 1800s, with the first recorded U.S. birth in 1892. After a period of relative obscurity, Lex experienced a resurgence in the early 21st century, peaking in popularity in 2021. However, since 2022 its usage has been falling, and in 2025 it ranked 2304th with approximately 1 in 28,468 boys given the name. Geographically, Lex has been most common in Illinois, Georgia, and California. Its crisp, one-syllable sound and modern feel make it a concise alternative to the longer Alexander, appealing to parents seeking a strong yet simple name.
Lex originated as a short form of Alexander, a name of Greek origin from 'alexein' (to defend) and 'aner' (man). Historically used as a nickname for Alexander, it has been adopted as an independent given name in English-speaking countries since the late 19th century.
Where Lex is most popular
Births per 100,000 boys by state, 2025. The lightest shade means too few recorded births.
Sibling names for Lex
Names that share Lex's style, for a brother or sister.
