Birthday twins

People Born on September 30

September 30 is the birthday of 50 notable people we've found so far, including actors, scientists, athletes and authors, and 4 of them are billionaires.

4
billionaires
joint #32 of 366 birthdays
8
founders & entrepreneurs
joint #263 of 366 birthdays
50
notable people
joint #148 of 366 birthdays
$128B
combined wealth
#15 of 366 birthdays

What the data says

Your birthday has some company.

  • The people we list for this date were born across 795 years, from 1207 to 2002.
  • People born on this day come from 23 countries, most often United States (14 of 48).
  • Thomas Peterffy is the wealthiest person we list for September 30, with an estimated $109B reported as of November 2025.
  • Founders born on September 30 started companies including Interactive Brokers, Sun Microsystems and Palantir Technologies.
  • With 4 billionaires, this date has well above the average of 2.3 per birthday.
  • Thomas Peterffy accounts for more than half of the documented wealth among people born on this day.
  • September 30 birthdays span at least four well-represented fields, including billionaires, entrepreneurs, founders and inventors.
  • 44% of the people we list for this date are historical figures who are no longer living.
  • Together, the 4 people with sourced estimates born on September 30 hold a reported $128B, the #15 total among all 366 birthdays.
  • 6 Nobel laureates were born on September 30, including Elie Wiesel and Barry Marshall.
  • 4 of them had founded a company, won a major award or taken a top job before turning 30.
  • The youngest billionaire born on September 30 is Stephen Cohen, 43.

💰 Richest person born on September 30

Thomas Peterffy
danor shtruzman, Public domain, via Wikimedia Commons
billionaire

Thomas Peterffy

Entrepreneur · Interactive Brokers · finance

1944 · United States

$109Breported estimate as of November 2025 · Forbes

Thomas Peterffy is a Hungarian-born American billionaire businessman. He is the founder, chairman and the largest shareholder of Interactive Brokers. As of November 2025, his estimated net worth is US$109 billion, making him the 18th richest person in the world.

Full profile →

Sources (4)

Reported estimate as of November 2025: $109B. Wealth changes; this is not a live figure.

Against the other 365

How September 30 ranks

Ranks compare all 366 dates in the dataset; ties share a rank. See every September birthday · battle September 30 against another date · all rankings

The September 30 wealth profile

Billionaires born on September 30

$128B
combined wealth
low-bound sum, newest as of November 2025
4
sourced estimates
4
billionaires
joint #32 of 366
#15
of 366 for wealth

Ranked by the low end of each reported estimate; bars use a log scale.

Andy Bechtolsheim
billionaire

Andy Bechtolsheim

Entrepreneur · Sun Microsystems · technology

1955 · Germany

$6.6Bolder estimate, as of 2018 · Forbes

Andreas Maria Maximilian Freiherr von Mauchenheim genannt Bechtolsheim is a German electrical engineer, entrepreneur and investor. He co-founded Sun Microsystems in 1982 and was its chief hardware designer.

Norbert Stuhrmann, CC BY-SA 3.0, via Wikimedia Commons

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Sources (3)
billionaire

Stephen Cohen

Entrepreneur · Palantir Technologies · software

1982 · United States

$5.4Bolder estimate, as of 2025 · Forbes

Stephen Andrew Cohen is an American computer scientist and entrepreneur best known as a co-founder, president and secretary of Palantir Technologies, a platform for analyzing integration and visualizing data used by governments and businesses.

Full profile →

Sources (3)

How they made their money

Industries of the companies the 4 wealthy people born on September 30 founded or led.

  • finance33% (1 people)
  • software33% (1 people)
  • technology33% (1 people)

Who shares September 30

What kind of people are born on September 30?

Share of the 50 people we list, by documented field. People can belong to more than one.

  • Actors28% (14 people)
  • Scientists24% (12 people)
  • Athletes18% (9 people)
  • Authors18% (9 people)
  • Entrepreneurs16% (8 people)
  • Creators10% (5 people)
  • Musicians10% (5 people)

Countries

23 countries, most often United States

Citizenship as recorded on Wikidata, one country per person.

  • United States14 (14 people)
  • France5 (5 people)
  • Switzerland3 (3 people)
  • United Kingdom3 (3 people)
  • India2 (2 people)
  • Italy2 (2 people)
  • Japan2 (2 people)

Life timeline

What were people born on September 30 doing at your age?

Dated milestones from Wikidata (company foundings, awards, top jobs, notable works), placed at the age each person reached them. Add your birth year above to see the ones you have passed.

By 25

  1. ~21Stephen CohenFounded Palantir Technologies (2003)
  2. ~25Otto SchmidtBecame Privatdozent (1916)
  3. ~24Truman CapoteReceived the O. Henry Award (1948)
  4. 21Lacey ChabertNotable work: Mean Girls (2004)

26 to 30

  1. 26Andy BechtolsheimFounded Sun Microsystems (1982)
  2. ~26Takeshi InoueJoined Japan men's national football team (1954)
  3. ~26Olivier GiroudJoined Arsenal F.C. (2012)
  4. ~26Frank RijkaardJoined AC Milan (1988)

31 to 40

  1. 32Marion CotillardReceived the Academy Award for Best Actress (2008)
  2. 35Lewis MilestoneReceived the Academy Award for Best Director (1930)
  3. ~33Otto SchmidtBecame editor-in-chief (1924)
  4. ~34Truman CapoteNotable work: Breakfast at Tiffany's (1958)

41 to 50

  1. 42Kieran CulkinReceived the Academy Award for Best Supporting Actor (2025)
  2. ~48Jean-Marie LehnReceived the Nobel Prize in Chemistry (1987)
  3. ~45Johann DeisenhoferReceived the Nobel Prize in Chemistry (1988)
  4. ~50Thomas PeterffyFounded Interactive Brokers (1994)

After 50

  1. ~58Elie WieselReceived the Nobel Peace Prize (1986)
  2. ~72Deborah KerrReceived the Academy Honorary Award (1993)
  3. ~54Barry MarshallReceived the Nobel Prize in Physiology or Medicine (2005)
  4. ~56Jean-Baptiste PerrinReceived the Nobel Prize in Physics (1926)

The standouts

The most successful people born on September 30

Ordered by sourced wealth, then documented achievement and coverage.

Monica Bellucci
actor

Monica Bellucci

Top tier

Actor

1964 · Italy

Monica Anna Maria Bellucci is an Italian actress who began her career as a fashion model before working in Italian, American, British, and French films.

Paul Katzenberger, CC BY-SA 4.0, via Wikimedia Commons

Sources (2)
Kieran Culkin
actor

Kieran Culkin

Top tier

Actor

1982 · United States

Kieran Kyle Culkin is an American actor. Known for portraying distasteful yet sympathetic characters across stage and screen, his accolades include an Academy Award, a BAFTA Award, a Primetime Emmy Award, and two Golden Globe Awards.

Raph_PH, CC BY 2.0, via Wikimedia Commons

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Sources (2)
Marion Cotillard
actor

Marion Cotillard

Top tier

Actor

1975 · France

Marion Cotillard is a French actress who has appeared in both mainstream and independent European and Hollywood productions. She is the recipient of various accolades, including an Academy Award, a British Academy Film Award, two César Awards, and a Golden Globe Award.

Canal22, CC BY 3.0, via Wikimedia Commons

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Sources (2)
Ezra Miller
actor

Ezra Miller

Top tier

Actor

1992 · United States

Ezra Matthew Miller is an American actor. Their feature film debut was in Afterschool (2008), which they followed by starring in the dramas We Need to Talk About Kevin (2011) and The Perks of Being a Wallflower (2012).

Dick Thomas Johnson from Tokyo, Japan, CC BY 2.0, via Wikimedia Commons

Sources (2)
Truman Capote
author

Truman Capote

Top tier

Creator

1924–1984 · United States

Truman Garcia Capote was an American novelist, screenwriter, and playwright. Several of his short stories, novels, and plays have been praised as literary classics, and he is regarded as one of the founders of New Journalism, along with Gay Talese, Hunter S.

Jack Mitchell, CC BY-SA 4.0, via Wikimedia Commons

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Sources (2)

Builders

Entrepreneurs born on September 30

Juan-Miguel Villar Mir
entrepreneur

Juan-Miguel Villar Mir

Entrepreneur

1931–2024 · Spain

Juan-Miguel Villar Mir, 1st Marquess of Villar Mir was a Spanish billionaire businessman, politician, and the chairman and CEO of the construction company Obrascón Huarte Lain.

PresidenciaComMadrid (youtube), CC BY 3.0, via Wikimedia Commons

Sources (2)
entrepreneur

Venugopal Dhoot

Entrepreneur

1951 · India

Venugopal Dhoot is an Indian businessman. He is the founder, chairman and managing director of Videocon. He was arrested by the CBI on 26 Dec 2022 in the ICICI Bank Fraud case.

Sources (2)
entrepreneur

Carol Jenkins Barnett

Entrepreneur

1956–2021 · United States

Carol Jenkins Barnett was an American philanthropist, businesswoman, and the daughter of Publix Super Markets founder George W. Jenkins. Jenkins Barnett was president of Publix Super Markets Charities and a member of the grocery chain's board of directors.

Sources (2)
entrepreneur

Somchai Khunpluem

Entrepreneur

1937–2019 · Thailand

Somchai Khunpluem, alternatively spelled Kunplome, was a Thai politician, businessman and organized crime boss. He was also known by the nickname "Kamnan Poh"(Thai: กำนันเป๊าะ, "subdistrict headman Poh").

Sources (2)

September 30 in history

What else happened on September 30

  1. 489The Ostrogoths under Theoderic the Great defeat the forces of Odoacer for the second time.
  2. 1791The first performance of Mozart's opera The Magic Flute takes place two months before his death.
  3. 1919The Elaine massacre in Arkansas commences.
  4. 1945The Bourne End rail crash, in Hertfordshire, England, kills 43.
  5. 1978Finnair Flight 405 is hijacked by Aarno Lamminparras in Oulu, Finland.

Events from Wikipedia, CC BY-SA.

More birthday twins

Famous people born on September 30

Rumi
author

Rumi

Author

1207–1273

Jalāl al-Dīn Muḥammad Rūmī, commonly known as Rumi, was a Sufi mystic, poet, and founder of the Islamic brotherhood known as the Mevlevi Order. His family hailed from Balkh.

Unknown authorUnknown author, Public domain, via Wikimedia Commons

Sources (2)
Lacey Chabert
actor

Lacey Chabert

Actor

1982 · United States

Lacey Nicole Chabert is an American actress. One of her first roles as a child actress was the part of Bianca Montgomery, the daughter of Erica Kane, on All My Children from 1992 to 1993.

Sixsteps, CC BY-SA 2.0, via Wikimedia Commons

Sources (2)
Eric Stoltz
actor

Eric Stoltz

Actor

1961 · United States

Eric Cameron Stoltz is an American actor, director and producer. He played Rocky Dennis in the biographical drama film Mask (1985), which earned him the nomination for the Golden Globe Award for Best Supporting Actor in a Motion Picture.

oscalito, CC BY-SA 2.0, via Wikimedia Commons

Sources (2)
Maddie Ziegler
actor

Maddie Ziegler

Actor

2002 · United States

Madison Nicole Ziegler is an American actress and dancer.

Kevin Paul, CC BY 4.0, via Wikimedia Commons

Sources (2)
Angie Dickinson
actor

Angie Dickinson

Actor

1931 · United States

Angeline Dickinson is an American retired actress.

NBC Television, Public domain, via Wikimedia Commons

Sources (2)
Elie Wiesel
athlete

Elie Wiesel

Athlete

1928–2016 · United States

Eliezer "Elie" Wiesel was a Romanian-born American writer, professor, political activist, Nobel laureate, and Holocaust survivor.

David Shankbone, CC BY 3.0, via Wikimedia Commons

Full profile →

Sources (2)
Deborah Kerr
actor

Deborah Kerr

Actor

1921–2007 · United Kingdom

Deborah Jane Trimmer, known professionally as Deborah Kerr, was a British actress. Kerr rose to fame for her portrayals of proper, ladylike women, who often navigated societal expectations and stereotypes.

Allan warren, CC BY-SA 3.0, via Wikimedia Commons

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Sources (2)
Martina Hingis
athlete

Martina Hingis

Athlete

1980 · Switzerland

Martina Hingis is a Swiss former professional tennis player. She was ranked as the world No. 1 in women's singles by the Women's Tennis Association (WTA) for 209 weeks and as the world No. 1 in women's doubles for 90 weeks, holding both No. 1 rankings simultaneously for 29 weeks.

si.robi, CC BY-SA 2.0, via Wikimedia Commons

Sources (2)
Frank Rijkaard
athlete

Frank Rijkaard

Athlete

1962 · Kingdom of the Netherlands

Franklin Edmundo Rijkaard is a Dutch former football manager and player who primarily played as a defensive midfielder. He is regarded as one of the greatest midfielders of all time.

Marcel Antonisse / Anefo, CC0, via Wikimedia Commons

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Sources (2)
Girolamo Savonarola
author

Girolamo Savonarola

Politician

1452–1498 · Republic of Florence

Girolamo Savonarola, OP, also referred to as Jerome Savonarola, was an Italian ascetic Dominican friar from Ferrara and a preacher active in Renaissance Florence.

Fra Bartolomeo, Public domain, via Wikimedia Commons

Sources (2)
Crystal Bernard
actor

Crystal Bernard

Actor

1961 · United States

Crystal Lynn Bernard is a retired American singer-songwriter and actress, best known for her roles as Helen Chappel-Hackett on the sitcom Wings (1990–1997), Amy on It's a Living (1985–1989), and K.C. Cunningham on Happy Days (1983–1984).

Alan Light, CC BY 2.0, via Wikimedia Commons

Sources (2)
author

Savitri Devi

Author

1905–1982 · Greece

Savitri Devi Mukherji was a French-born Greek Nazi activist, spy, and author. She served the Axis powers by committing acts of espionage against the Allied forces in India.

Sources (2)
Nico Elvedi
athlete

Nico Elvedi

Athlete

1996 · Switzerland

Nico Elvedi is a Swiss professional footballer who plays as a centre-back for Premier League club Leeds United and the Switzerland national team.

Press Service of the President of the Republic of Azerbaijan, CC BY 4.0, via Wikimedia Commons

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Sources (2)
Barry Marshall
scientist

Barry Marshall

Nobel Prize winner

1951 · Australia

Barry James Marshall is an Australian physician, Nobel Laureate in Physiology or Medicine, Professor of Clinical Microbiology and Co-Director of the Marshall Centre at the University of Western Australia.

WikiEdtingProfile2021, CC BY-SA 4.0, via Wikimedia Commons

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Sources (2)
Cecelia Ahern
author

Cecelia Ahern

Creator

1981 · Ireland

Cecelia Ahern is an Irish novelist, known for her works like Where Rainbows End, If You Could See Me Now, and PS, I Love You. Born in Dublin, Ahern is published in nearly fifty countries, and has sold over 25 million copies of her novels worldwide.

C.Stadler/Bwag, CC BY-SA 4.0, via Wikimedia Commons

Sources (2)
Lewis Milestone
actor

Lewis Milestone

Actor

1895–1980 · United States

Lewis Milestone was a Russian-American film director, screenwriter, and producer active during the Golden Age of Hollywood.

film studio publicity still. Original uploader was Wikiwatcher1 at en.wikipedia, Public domain, via Wikimedia Commons

Sources (2)
Udo Jürgens
actor

Udo Jürgens

Actor

1934–2014 · Switzerland

Udo Jürgens was an Austrian composer and singer of popular music whose career spanned over 50 years. He won the Eurovision Song Contest 1966 for Austria, composed close to 1,000 songs, and sold over 104 million records. In 2007, he additionally obtained Swiss citizenship.

Collectie / Archief : Fotocollectie Anefo Reportage / Serie : Grand Gala du Disque 1968 Beschrijving : Grand Gala du Dis, CC0, via Wikimedia Commons

Sources (2)
Laura Esquivel
author

Laura Esquivel

Politician

1950 · Mexico

Laura Beatriz Esquivel Valdés is a Mexican novelist, screenwriter and former politician. Her first novel Como agua para chocolate became a bestseller in Mexico and the United States, and was later developed into an award-winning film.

Abril Cabrera, Secretaría de Cultura de la Ciudad de México, CC BY-SA 2.0, via Wikimedia Commons

Sources (2)
Hans Geiger
inventor

Hans Geiger

Inventor

1882–1945 · Nazi Germany

Johannes "Hans" Wilhelm Geiger was a German experimental physicist. He is known as the inventor of the Geiger counter, a device used to detect ionizing radiation, and for carrying out the Rutherford scattering experiments, which led to the discovery of the atomic nucleus.

Unknown authorUnknown author, Public domain, via Wikimedia Commons

Sources (2)
Cristián Zapata
athlete

Cristián Zapata

Athlete

1986 · Colombia

Cristián Eduardo Zapata Valencia is a Colombian former professional footballer who played as a centre-back. A quick and physically powerful defender, known for his hard marking of opponents and strength in the air, he usually plays as a centre back.

Originally posted to Flickr by danheap77, cropped by User:Simo82, CC BY 2.0, via Wikimedia Commons

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Sources (2)
Otto Schmidt
scientist

Otto Schmidt

Politician

1891–1956 · Soviet Union

Otto Yulyevich Shmidt, better known as Otto Schmidt, was a Soviet scientist, mathematician, astronomer, geophysicist, statesman, and academician.

Unknown authorUnknown author, Public domain, via Wikimedia Commons

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Sources (2)
Jean-Baptiste Perrin
scientist

Jean-Baptiste Perrin

Musician

1870–1942 · France

Jean Baptiste Perrin was a French physicist who, in his studies of the Brownian motion of minute particles suspended in liquids, verified Albert Einstein's explanation of this phenomenon and thereby confirmed the atomic nature of matter.

Agence de presse Meurisse, Public domain, via Wikimedia Commons

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Sources (2)
Étienne Bonnot de Condillac
scientist

Étienne Bonnot de Condillac

Author

1714–1780 · France

Étienne Bonnot de Condillac was a French philosopher and Catholic priest who focused on psychology and the philosophy of the mind.

Pierre-Michel Alix / After Giuseppe Baldrighi, Public domain, via Wikimedia Commons

Sources (2)
Anatoli Papanov
actor

Anatoli Papanov

Actor

1922–1987 · Soviet Union

Anatoli Dmitriyevich Papanov was a Soviet and Russian actor, drama teacher, and theatre director at the Moscow Satire Theatre where he served for almost 40 years.

Игорь Верещагин, CC BY-SA 4.0, via Wikimedia Commons

Sources (2)
Jean-Marie Lehn
scientist

Jean-Marie Lehn

Scientist

1939 · France

Jean-Marie Pierre Lehn is a French chemist who received the Nobel Prize in Chemistry together with Donald Cram and Charles Pedersen in 1987 for his synthesis of cryptands.

Photo Claude TRUONG-NGOC, CC BY-SA 4.0, via Wikimedia Commons

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Sources (2)
Valentyn Sylvestrov
actor

Valentyn Sylvestrov

Actor

1937 · Ukraine

Valentin Vasylyovych Silvestrov is a Ukrainian composer and pianist who plays and writes contemporary classical music. He is a laureate of the Shevchenko National Prize.

Smerus, CC BY-SA 3.0, via Wikimedia Commons

Sources (2)
Nevill Francis Mott
scientist

Nevill Francis Mott

Scientist

1905–1996 · United Kingdom

Sir Nevill Francis Mott was a British theoretical physicist who won the Nobel Prize for Physics in 1977 for his work on the electronic structure of magnetic and disordered systems, especially amorphous semiconductors. The Prize was shared with Philip W.

GFHund, CC BY 3.0, via Wikimedia Commons

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Sources (2)
Peter Cruddas

Peter Cruddas

Businessperson

1953 · United Kingdom

Peter Andrew Cruddas, Baron Cruddas is an English banker and businessman. He is the founder of online trading company CMC Markets. In the 2007 Sunday Times Rich List, he was named the richest man in the City of London, with an estimated fortune of £860 million.

©House of Lords / photography by Roger Harris, CC BY 3.0, via Wikimedia Commons

Sources (2)
scientist

Johann Deisenhofer

Scientist

1943 · United States

Johann Deisenhofer is a German biochemist who, along with Hartmut Michel and Robert Huber, received the Nobel Prize for Chemistry in 1988 for their determination of the first crystal structure of an integral membrane protein, a membrane-bound complex of proteins and co-factors that is essential to photosynthesis.

Sources (2)

Sources and method for this page

This page lists 50 people born on September 30, every one traced to a Wikidata record and, where shown, a Wikipedia summary (CC BY-SA) and a licensed Wikimedia Commons photo. 4 of them carry a dated net-worth estimate citing Forbes or Bloomberg; combined wealth is the sum of the low end of those estimates, the newest as of November 2025. Rankings compare all 366 dates in the dataset built on 2026-09-28. Milestone ages come from dated Wikidata statements; a tilde marks year-only dates. Nothing on this page is a prediction about anyone born on September 30. Read the full methodology.

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