# Llewellyn (surname)

Source: https://namelineage.com/surname/llewellyn/  
Publisher: Name Lineage. Counts from the US Census Bureau; origin and etymology from Wiktionary; bearers from Wikidata. Data updated 2026-11-11.

A surname from Welsh [in turn originating as a patronymic].

| Field | Value |
|---|---|
| Origin | Welsh |
| Type | patronymic, formed from a father’s (or ancestor’s) given name |
| People in the US (2010 Census) | 5,955 |
| US rank (2010) | 5,807 of 162,253 |
| How often | about 1 in every 51,846 people |
| Change since 2000 | +3.4% (5,760 in 2000) |
| Pronunciation | /ləˈwɛlɪn/, 3 syllables |
| Variant spellings | Lewelling, Llewelyn, Flewellen |

## Etymology

From Welsh Llywelyn.

## Who carries it

Share of people named Llewellyn in the 2010 US Census by the Census's own race and ethnicity groups. The Census suppresses a share when the count behind it is small.

| Group | Share |
|---|---|
| White (not Hispanic) | 85% |
| Black (not Hispanic) | 9.9% |
| Hispanic or Latino (any race) | 2.8% |
| Asian and Pacific Islander | 0.6% |
| American Indian and Alaska Native | 0.3% |
| Two or more races | 1.4% |

## Where

Wikidata records people named Llewellyn in the United Kingdom of Great Britain and Ireland and the United Kingdom.

## People named Llewellyn

- Sir Harry Llewellyn, 3rd Baronet, British equestrian (1911–1999)
- Olivia Llewellyn, British actor

## Similar surnames

Lewellyn, Lewallen, Lewellen, Lalani, Luellen, Lalone.

## How to read these numbers

A Census count is people alive and counted in 2010, not births, and names occurring fewer than 100 times are not published at all. Ethnicity shares are the Census's own categories.