Rising since 2013, #5,399 for boys today.
Popularity of Llewelyn since 1916
Babies named Llewelyn per year in U.S. Social Security records.
Data table (by decade)
| Decade | Girls | Boys |
|---|---|---|
| 1910s | 0 | 13 |
| 1920s | 0 | 20 |
| 1930s | 0 | 0 |
| 1940s | 0 | 0 |
| 1950s | 0 | 22 |
| 1960s | 0 | 7 |
| 1970s | 0 | 15 |
| 1980s | 0 | 0 |
| 1990s | 0 | 0 |
| 2000s | 0 | 0 |
| 2010s | 5 | 18 |
| 2020s | 5 | 83 |
Meaning & origin
Llewelyn is a Welsh name with a long and storied history, most famously borne by Llywelyn the Great, a 13th-century prince of Gwynedd. Despite its ancient roots, the name has seen a modest resurgence in the United States in recent years. It experienced its peak year in 2024, when it ranked highest, and its trajectory has been rising steadily since 2013. Currently, it is given to approximately 1 in every 100,475 newborns, placing it at rank 5399 in 2025. The name remains rare, with no particular concentration in any state, but it carries a strong cultural and historical weight for families with Welsh heritage or an appreciation for Celtic names.
Llewelyn is a Welsh name derived from elements 'llyw' (leader) and 'eilyn' (like, resembling), often interpreted as 'like a lion'. It appears in medieval Welsh history and legend, notably associated with Llywelyn the Great, a 13th-century prince of Gwynedd. The name has remained in use in Wales and among Welsh communities, though its popularity has fluctuated over time.
Nicknames & variants
Nicknames: Llew, Welly
Variants: Llywelyn, Llewellyn
Sibling names for Llewelyn
Names that share Llewelyn's style, for a brother or sister.
