Jack Dorsey

Also known as Jack Patrick Dorsey, Jack

American software entrepreneur and co-founder of Twitter

AI overview

Jack Dorsey is an American software entrepreneur who co-founded Twitter, the social media platform that allows people to share short messages and updates online. He matters because Twitter became one of the world's most influential platforms for public communication and news, significantly shaping how people share information and engage in conversations globally.

AI-generated from the Wikipedia summary — may contain errors.

Person · Open Library

Works: 1

Top works

Christmas Cards and Carols

via Open Library + Wikidata

Music · MusicBrainz

Type: Person
Gender: Male
Origin: United States

2008 universal fire victimbig bandjazzstandardsswingtraditional pop

Member of

Macy Blackman and the Mighty Fines

Discogs Stream

via MusicBrainz · CC0

Listeners · Last.fm

Listeners: 700
Total plays: 4,465

Recent publications · Crossref

5 total works indexed

A simple method for displaying the hydropathic character of a protein
· 1982 · cited 18,696x
Global burden of 369 diseases and injuries in 204 countries and territories, 1990–2019: a systematic analysis for the Global Burden of Disease Study 2019
· 2020 · cited 15,984x
Accurate structure prediction of biomolecular interactions with AlphaFold 3
· 2024 · cited 15,309x
The diagnosis of dementia due to Alzheimer's disease: Recommendations from the National Institute on Aging‐Alzheimer's Association workgroups on diagnostic guidelines for Alzheimer's disease
· 2011 · cited 13,462x
APACHE II
· 1985 · cited 13,289x

via Crossref · CC0

Wikidata facts

Instance of: human
Given name: Patrick
Gender: male
Citizenship: United States
Place of birth: St. Louis
Occupation: businessperson
Position held: chairperson
Languages spoken: Spanish
Native language: English language
Hair colour: black hair
Image: Jack Dorsey 2014.jpg
Residence: Sea Cliff

Show 9 more facts

Commons category: Jack Dorsey
date of birth: 1976-11-19
name in native language: Jack Dorsey
net worth: 6700000000
social media followers: 5837297
ethnic group: Irish Americans
owner of: Block, Inc.
start of work period: 2006-00-00
Commons Creator page: Jack Dorsey

Sources (13)

via Wikidata · CC0

~16 min read

Encyclopedic overview

Jack Patrick Dorsey (born November 19, 1976) is an American businessman, co-founder of Twitter, Inc. and CEO during 2007–2008 and 2015–2021, as well as co-founder, principal executive officer and chairman of Block, Inc. (developer of the Square financial services platform) and founder of Bluesky.

As of February 2026, Forbes estimated his net worth to be $5.9 billion.

Excerpted from Wikipedia’s “Jack Dorsey” article, available under the CC BY-SA 4.0 licence.