# Slack (surname)

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

A surname.

| Field | Value |
|---|---|
| Origin | not recorded |
| Type | not recorded |
| People in the US (2010 Census) | 13,377 |
| US rank (2010) | 2,692 of 162,253 |
| How often | about 1 in every 23,080 people |
| Change since 2000 | +3.8% (12,893 in 2000) |
| Pronunciation | not recorded |
| Variant spellings | none recorded |

## Etymology

* As an English and Dutch surname, from the adjective slack. * Also as an English surname, from the noun slack (“shallow valley”). * Possibly also a Slovene surname Americanized from slak (“bindweed”), from Proto-Slavic *sъvolkъ. * The name of the software is an acronym of Searchable Log of All Conversation and Knowledge.

## Who carries it

Share of people named Slack 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) | 83% |
| Black (not Hispanic) | 12% |
| Hispanic or Latino (any race) | 2.6% |
| Asian and Pacific Islander | 0.5% |
| American Indian and Alaska Native | 0.4% |
| Two or more races | 1.9% |

## Where

Wikidata records people named Slack in Australia.

## People named Slack

- Joshua Slack, Austrian beach volleyball player

## Similar surnames

Slick, Solak, Solis, Salas, Schulz, Seals, Scales, Sales, Soliz, Sells, Schulze, Sills.

## 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.