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Jack O'Neill

1923 – 2017

American businessman

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About Jack O'Neill

Lived 1923 – 2017 (aged 94). Jack O'Neill was an American entrepreneur, surfer, environmentalist and inventor.

Jack O'Neill (March 27, 1923 – June 2, 2017) was an American businessman and founder of the surfwear and surfboard company O'Neill.

Early life O'Neill grew up in Oregon and Southern California, where he began body surfing in the late 1930s. He was a Navy pilot during World War II. O'Neill later moved to San Francisco in 1949 and earned a bachelor's degree in liberal arts at San Francisco State University.

Career In 1952, he founded the O'Neill brand while opening one of California's first surf shops in a garage on the Great Highway in San Francisco, close to his favorite bodysurfing break at the time. This led to the establishment of a company that deals in wetsuits, surf gear, and clothing. Jack O'Neill's name is attached to surfwear and his brand of surfing equipment. Although the invention of the wetsuit had often been attributed to O'Neill, he was not its inventor. An investigation concluded that UC Berkeley physicist Hugh Bradner was the inventor of the wetsuit.

In December 1996 he began a non-profit organization called O'Neill Sea Odyssey which provides students with hands-on lessons in marine biology and that teaches the relationship between the oceans and the environment. It has hosted about 100,000 children since it started.

Personal life He was married to Marjorie, who died in 1973, and they had six children.

His granddaughter Uma O'Neill is a New Zealand-born equestrian rider, who represents that country and holds both New Zealand and American citizenships. She was selected to compete at the 2020 Summer Olympics.

Awards In 2002, O'Neill was an EY Entrepreneur of the Year Award recipient for the Northern California Region.

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Important facts

Birth century
Nationality
Education
San Francisco State University, University of California, San Francisco, University of Portland
Also known as
Jack O'Neill (businessman), Jack O'Neill (surfer), Jack O'Neill (entrepreneur)

People in Jack O'Neill's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Jack O'Neill's

Frequently asked questions

Who was Jack O'Neill?

American businessman (1923-2017)

When was Jack O'Neill born?

Jack O'Neill was born on 27 March 1923 in Denver.

When did Jack O'Neill die?

Jack O'Neill died on 2 June 2017 in Santa Cruz.

What was Jack O'Neill's occupation?

Jack O'Neill was an entrepreneur, surfer, environmentalist and inventor.

What nationality was Jack O'Neill?

Jack O'Neill was American.

Sources & further reading

· Wikipedia: Jack O'Neill

· Wikidata: Q6114413

· DBpedia: Jack O'Neill (businessman)

Cite this page

APA: Biography.guide. (2026). Jack O'Neill. https://biography.guide/jack-o-neill/

MLA: "Jack O'Neill." Biography.guide, https://biography.guide/jack-o-neill/.

Chicago: "Jack O'Neill." Biography.guide. https://biography.guide/jack-o-neill/.

Data last updated: 2026-09-21 · Spot an error? Report a correction.

Portrait: Wikimedia Commons · author & licence

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