Liam Costner is an American real estate professional best known as the son of actor and filmmaker Kevin Costner. Born on November 15, 1996, Liam Costner is 29 years old as of October 2026. He has kept details such as his height and weight private rather than building a public celebrity profile.
His parents are Kevin Costner and Bridget Rooney. He has six paternal half-siblings: Annie, Lily, Joe, Cayden, Hayes, and Grace Costner. His mother later married businessman William “Bill” Koch. Liam keeps his romantic and personal life away from media attention.
Unlike his famous father, Liam did not pursue a Hollywood acting career. He has been connected with real estate work in Florida, particularly the North Palm Beach County market. His personal net worth has not been disclosed, and his quiet lifestyle keeps much of his professional and financial life private.
Liam Costner Wiki/Bio
| Field | Details |
|---|---|
| Full Name | Liam Costner |
| Stage/Professional Name | Liam Costner |
| Birth & Birthplace | November 15, 1996, United States |
| Age | 29 years old |
| Nationality | American |
| Occupation | Real estate professional |
| Career Highlights | Work connected with Florida real estate |
| Wealth Sources | Real estate career |
| Family | Costner and Rooney families |
| Relationship | Kept private |
| Known For | Son of Kevin Costner and Bridget Rooney |
| Social Presence | Maintains a low public profile |
Liam belongs to one of Hollywood’s best-known blended families. He is Kevin Costner’s fourth child and his only child with Bridget Rooney.
Liam Costner Real Name
His name is Liam Costner. Some online profiles use the longer name Liam Timothy Costner, but Liam Costner is the name consistently used in major coverage of Kevin Costner’s family.
He does not use a stage name. This makes sense because he has not developed a public career in acting, music, or entertainment.
Fans mainly know him through his connection to Kevin Costner. His decision to stay away from celebrity publicity has made him one of the more private members of the Costner family.
Liam Costner Early Life and Education
Liam was born in the United States in 1996. He grew up with connections to two prominent American families, with the Costner name on his father’s side and the Rooney family on his mother’s side.
His childhood was far less visible than his father’s Hollywood career. He did not become a regular child actor or grow into a public entertainment personality.
Details about his schooling, college education, and degree have remained private. His later professional direction moved toward real estate rather than film or television.
Liam Costner Parents and Siblings
Liam’s father is Kevin Costner, the actor, filmmaker, and director known for a long career in American film and television. His mother is Bridget Rooney, a member of the Rooney family associated with the Pittsburgh Steelers.
Kevin and Bridget had a brief relationship during the 1990s. Liam was born in November 1996, and a paternity test established Kevin as his father. Kevin then accepted his responsibilities toward his son.
Liam has six paternal half-siblings. Annie, Lily, and Joe Costner are Kevin’s children with Cindy Silva, while Cayden, Hayes, and Grace are his children with Christine Baumgartner. Bridget later married businessman William “Bill” Koch.
| Family Detail | Information |
|---|---|
| Father | Kevin Costner |
| Mother | Bridget Rooney |
| Stepfather | William “Bill” Koch |
| Paternal Half-Siblings | Annie, Lily, Joe, Cayden, Hayes and Grace Costner |
| Family Background | Costner and Rooney families |
Liam Costner Relationship and Personal Life
Liam keeps his romantic life private. He has not built the type of public profile that regularly places his dating life or relationships in entertainment media.
No spouse or long-term partner has become part of his established public biography. The same privacy applies to information about children.
This approach fits his wider lifestyle. While his father has spent decades in front of cameras, Liam has remained outside Hollywood publicity and rarely becomes the subject of major public appearances.
Liam Costner Age
Liam was born on November 15, 1996. He is 29 years old as of October 6, 2026 and will celebrate his 30th birthday on November 15, 2026.
He was born about two years after Kevin Costner’s divorce from his first wife, Cindy Silva. His birth came during a period between two major chapters of his father’s family life.
Liam is younger than Kevin’s first three children, Annie, Lily, and Joe, and older than Cayden, Hayes, and Grace.
Liam Costner Height, Weight and Physical Appearance
Liam’s height and weight have not been disclosed through a dependable first-hand profile. Exact measurements repeated across celebrity biography pages therefore should not be treated as established personal details.
He also keeps his physical appearance largely outside the celebrity press. Unlike actors, models, athletes, and other public personalities, he does not maintain a career that regularly produces official biographies with body measurements.
His low-profile lifestyle means appearance has never become a major part of his professional identity. Assigning precise measurements based on photographs would not provide readers with reliable information.
Liam Costner Before Fame
Liam grew up surrounded by famous family connections, but he did not turn those connections into an entertainment career. His father was already an internationally recognized actor and filmmaker when Liam was born.
He spent his younger years mostly outside the spotlight. He did not build a known filmography as a child actor or regularly appear alongside Kevin at Hollywood events.
As an adult, his professional direction became associated with real estate. That choice separated his career path from the acting, filmmaking, and entertainment work commonly associated with the Costner name.
Liam Costner Career
Liam has been connected with the real estate industry rather than Hollywood. His work has been associated with the North Palm Beach County property market in Florida and the Frankel Bell Group.
This professional path makes him noticeably different from his father. Kevin built his reputation through acting, directing, and producing, while Liam chose work outside the entertainment business.
His career remains relatively private, with no extensive public record of property sales, professional awards, or major business ventures. He has also avoided turning his famous surname into a media or influencer career.
| Year/Period | Career Highlight |
|---|---|
| Early Life | Stayed largely outside Hollywood |
| Adulthood | Pursued a career outside entertainment |
| Later Career | Became associated with Florida real estate |
| Present | Maintains a private professional life |
Is Liam Costner an Actor?
Liam is not known for having a professional acting career. Despite being the son of one of Hollywood’s most recognizable actors, he did not follow Kevin Costner into movies and television.
This distinction is important because his famous surname can make people assume he works in entertainment. His professional identity has instead been connected with real estate.
His siblings have taken different paths. Some have worked in film, music, production, and audio, while Liam has remained one of the family’s least public members.
Liam Costner Social Media Presence
Liam does not maintain a highly visible celebrity-style social media presence. His name is far less prominent online than those of his father and some of his siblings.
He does not appear to use social platforms as a major part of a public brand. There is also no large-scale influencer career associated with his name.
This limited online exposure is consistent with the way he has handled other areas of his life. His professional activities and relationships generally remain separate from celebrity media.
Liam Costner Net Worth and Achievements
Liam’s personal net worth has not been disclosed. Exact figures circulating online cannot be separated reliably from assumptions involving his career, family wealth, or private financial arrangements.
His professional income has primarily been connected with his real estate career. Real estate earnings can include commissions and other property-related income, but Liam’s individual earnings have not been made public.
His most notable professional distinction is choosing an independent path outside Hollywood despite being Kevin Costner’s son. Family wealth belonging to Kevin Costner, Bridget Rooney, or Bill Koch should not automatically be treated as Liam’s personal fortune.
Liam Costner Legacy and Impact
Liam’s public identity differs from that of a traditional celebrity. He is mainly known because of his place in the Costner family rather than films, television appearances, music, or another public-facing body of work.
His life also shows the different career directions taken by Kevin Costner’s children. Some have entered entertainment-related fields, while Liam has largely remained outside that environment.
Public interest in him continues because Kevin Costner remains a major Hollywood figure. Liam, however, has maintained a distinctly private identity rather than developing a celebrity career of his own.
Liam Costner Nationality
Liam is American. He was born in the United States and comes from American families on both his father’s and mother’s sides.
His father, Kevin Costner, was born in California and built his career in American film. His mother’s Rooney family has deep connections to American professional football through the Pittsburgh Steelers.
Liam’s religion has remained a private matter, so it is better left outside his biographical profile.
Liam Costner and Kevin Costner
Liam is Kevin Costner’s fourth child and his only son with Bridget Rooney. Kevin has seven children in total from three relationships.
Liam was born in November 1996. A blood test later established Kevin’s paternity, after which Kevin acknowledged Liam as his son and intended to fulfill his parental responsibilities.
Unlike several of Kevin’s other children, Liam is rarely seen at major Hollywood events. He was not among the five Costner children who attended the Los Angeles premiere of Horizon: An American Saga – Chapter 1 with Kevin in June 2024.
Lesser-Known Facts About Liam Costner
| Fact | Details |
|---|---|
| Famous Father | His father is Kevin Costner |
| Mother | His mother is Bridget Rooney |
| Birth Year | He was born in 1996 |
| Birthday | His birthday is November 15 |
| Family Position | He is Kevin’s fourth child |
| Only Child Together | He is Kevin and Bridget’s only child |
| Siblings | He has six paternal half-siblings |
| Stepfather | Bridget married William “Bill” Koch |
| Rooney Connection | His maternal family is connected to the Pittsburgh Steelers |
| Career Direction | He chose work outside Hollywood |
| Real Estate | His career has been connected with Florida real estate |
| Acting | He has no established professional acting career |
| Publicity | He rarely appears at major celebrity events |
| Lifestyle | He maintains a low public profile |
Liam Costner Interesting Facts
- He is one of Kevin Costner’s seven children.
- He is Kevin Costner’s only child with Bridget Rooney.
- He was born between Kevin’s first and second marriages.
- His mother comes from the prominent Rooney family.
- Businessman Bill Koch became his stepfather.
- He chose a career outside acting and filmmaking.
- Real estate became his main professional connection.
- He has stayed far less visible than his famous father.
- He does not have an established Hollywood filmography.
- His personal finances and relationships remain private.
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FAQs About Liam Costner
What is Liam Costner’s real name?
He is known as Liam Costner. Some secondary biographies use Liam Timothy Costner, but major family coverage generally identifies him simply as Liam Costner.
How old is Liam Costner?
He is 29 years old as of October 2026. He was born on November 15, 1996, and will turn 30 in November 2026.
How tall is Liam Costner?
Liam has not disclosed a dependable height measurement. Precise figures circulated online lack the support needed to present them as fact.
Who are Liam Costner’s parents?
Liam Costner is the son of actor and filmmaker Kevin Costner and Bridget Rooney. He is their only child together.
What does Liam Costner do for a living?
He has been associated with real estate work in Florida, including the North Palm Beach County property market.
What is Liam Costner’s net worth?
His personal net worth has not been disclosed. Online figures often mix assumptions about real estate earnings, family money, and private financial arrangements rather than Liam’s own documented assets.
Conclusion
Liam is 29 years old as of October 2026 and comes from the Costner and Rooney families. His exact height and weight remain private, as do most details about his relationships and personal life.
Instead of following Kevin Costner into acting, he chose a quieter professional path associated with real estate. His low-key lifestyle has kept him away from the regular Hollywood attention surrounding his father.
Liam Costner continues to attract interest because of his famous family background, but his own life remains deliberately private. His personal net worth has not been disclosed, while his current public identity centers mainly on family connections and his work outside entertainment.
