# Janson (surname)

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

A surname originating as a patronymic.

| Field | Value |
|---|---|
| Origin | not recorded |
| Type | patronymic, formed from a father’s (or ancestor’s) given name |
| People in the US (2010 Census) | 3,930 |
| US rank (2010) | 8,408 of 162,253 |
| How often | about 1 in every 78,561 people |
| Change since 2000 | +1.7% (3,865 in 2000) |
| Pronunciation | not recorded |
| Variant spellings | none recorded |

## Etymology

From the medieval male given name Jan + -son.

## Who carries it

Share of people named Janson 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) | 90% |
| Black (not Hispanic) | 2.5% |
| Hispanic or Latino (any race) | 3.0% |
| Asian and Pacific Islander | 1.6% |
| American Indian and Alaska Native | 0.9% |
| Two or more races | 1.7% |

## Where

Wikidata records people named Janson in the United States, Belgium and Argentina.

## People named Janson

- Jillian Janson, American pornographic actress
- Klaus Janson, artist
- Lucas Pibe Janson, Argentine footballer
- Paul Janson, Belgian politician (1840-1913)
- H. W. Janson, American art historian, museum director (1913-1982)
- Marie Janson, Belgian politician (1873-1960)

## Similar surnames

Johnson, Jansen, Janssen, Jenson, Janzen, Jonson, Jansson, Jeansonne, Jamison, Jameson, Johansen, Jamieson.

## 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.