
Liam Costner: Kevin Costner’s Son, Family, Career and Personal Life
Liam Costner is best known as the son of Hollywood actor Kevin Costner and Bridget Rooney. Although his father has built a successful career in film and television, Liam has maintained a relatively private life. His family background, reported career, siblings and personal life continue to attract interest from readers curious about the Costner family.
Who Is Liam Costner?
Liam Costner was born in November 1996 and is the only child of Kevin Costner and Bridget Rooney together. Unlike his famous father, he has not established a widely documented career in Hollywood. Much of the available information about him focuses on his family connections and reported professional interests.
Profil-Biografie
| Detail | Information |
| Full name | Liam Costner; sometimes reported as Liam Timothy Costner |
| Birth | November 1996 |
| Age | 29 as of October 2026 |
| Father | Kevin Costner |
| Mother | Bridget Rooney |
| Nationality | American |
| Profession | Real estate career reported by secondary sources |
| Height | Not reliably confirmed |
| Net worth | Not publicly established |
| Marital status | Not confirmed |
Some websites report November 15, 1996, as Liam’s exact birthday, but the specific date is not consistently verified by authoritative sources.
Early Life and Family Background
Liam grew up connected to two prominent American families. His father is recognized for his acting and filmmaking achievements, while his mother belongs to the Rooney family, associated with the Pittsburgh Steelers. Despite these connections, Liam has remained largely outside public entertainment coverage, and detailed information about his childhood is limited.
Kevin Costner: Liam’s Father
Kevin Costner is an award-winning actor, director and producer known for Dances with Wolves, The Bodyguard, Field of Dreams and Yellowstone. His decades-long career has made him one of Hollywood’s recognizable figures. Liam’s connection to his father explains much of the public interest in his biography, although their careers have taken different paths.
Bridget Rooney: Liam’s Mother
Bridget Rooney is Liam’s mother and a member of the Rooney family. She and Kevin Costner had a relationship during the 1990s but never married. Bridget later married businessman William “Bill” Koch, expanding Liam’s family connections. However, details about Liam’s private relationship with his mother and extended family are not widely documented.
Liam Costner’s Siblings
Liam belongs to a blended family. His six paternal half-siblings are Annie, Lily, Joe, Cayden, Hayes and Grace Costner. Annie and Lily have connections to entertainment, while Joe has been associated with sound production. Hayes appeared in his father’s film Horizon: An American Saga — Chapter 1. Liam also has a maternal half-sister, Kaitlin Koch.
Education and Career
Some online biographies state that Liam attended Oxbridge Academy and pursued business-related studies, but these details require stronger independent confirmation. Secondary sources also associate him with real estate in Florida, reportedly through the Frankel Bell Group. His current employment, qualifications and professional achievements are not sufficiently documented to present these claims as established facts.
Liam Costner’s Net Worth

Liam Costner’s personal net worth has not been reliably established. Online estimates often lack transparent financial evidence, making them unsuitable as confirmed figures. Although Kevin Costner has earned substantial wealth through entertainment, his financial position does not establish Liam’s individual assets, income or inheritance. His personal finances remain private.
Height and Physical Appearance
Liam’s exact height, weight and other physical measurements are not reliably confirmed by authoritative public sources. Some celebrity websites publish specific figures, but these should be treated cautiously without dependable evidence. A factual biography can acknowledge this information gap rather than repeat measurements that may be inaccurate.
Personal Life and Relationships
Liam keeps a low public profile, and reliable information about his romantic relationships is limited. His current marital status has not been firmly confirmed. Claims about a wife, partner or children should therefore be treated cautiously unless supported by credible reporting. His private life remains less documented than his father’s public career.
Lifestyle and Social Media
Liam is not widely known for public appearances, interviews or celebrity events. Details about his hobbies, daily routine and spending habits remain largely private. Similarly, no personal social media account has been confidently authenticated in the sources reviewed. Accounts using his name should not automatically be treated as official.
Interesting Facts About Liam Costner
- He is Kevin Costner’s fourth child.
- His mother is Bridget Rooney.
- He was born in 1996, according to biographical reports.
- He has six paternal half-siblings and one maternal half-sister.
- His family has connections to Hollywood and professional football.
- Real estate is mentioned in secondary sources about his career.
- His personal net worth and height remain unconfirmed.
Conclusion
Liam Costner is best known for his connection to Kevin Costner and Bridget Rooney. Although his family background attracts public interest, he has maintained a relatively private life. His siblings and family history are better documented than his career, finances and relationships. Keeping these distinctions clear makes his biography informative, balanced and credible.
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FAQs
1. Who is Liam Costner?
Liam Costner is the son of Hollywood actor Kevin Costner and Bridget Rooney. He is known for his family background and relatively private lifestyle.
2. How old is Liam Costner?
Liam was reportedly born in November 1996, making him 29 years old as of October 2026.
3. What is Liam Costner’s net worth?
His personal net worth has not been reliably confirmed. Online estimates should be treated cautiously because his individual income and assets are not publicly documented.
4. What does Liam Costner do for a living?
Some online biographies associate Liam with real estate in Florida. However, his current employment and professional credentials have not been independently verified.
5. Is Liam Costner married, and how tall is he?
His marital status and exact height have not been reliably confirmed by authoritative public sources.