Liam Costner: Everything About Kevin Costner’s Son

Liam Costner is the son of famous actor Kevin Costner. His father is known for many hit movies and TV shows. But Liam likes a quiet life. He stays away from cameras and does not seek fame.

Liam was born into a rich and famous family. His mother comes from a family known for football. His stepfather is a very rich businessman. Still, Liam has chosen to live his life in his own way.

So, who is Liam Costner? How old is he? Who are his parents? In this article, we will learn about his childhood, family, school life, and more. We will also share what is known about him in 2026.

Liam Costner Quick Bio


Full Name	Liam Timothy Costner
Known As	Kevin Costner’s son
Birthday	November 15, 1996
Age	29 (October 2026)
Birthplace	United States
Nationality	American
Zodiac Sign	Scorpio
Father	Kevin Costner
Mother	Bridget Rooney
Stepfather	Bill Koch
Siblings	7 half-siblings
Career	Real estate, reportedly
Movies	None known
Wife	Not publicly known
Girlfriend	Not publicly known
Children	None publicly known
Net Worth	Not confirmed
Height	5’8″ (reported)
Residence	Not confirmed
Famous For	Being Kevin Costner’s son

Who Is Liam Costner?

Liam Timothy Costner is best known as Kevin Costner’s son. His mother is Bridget Rooney. Kevin is a famous American actor who starred in Yellowstone, The Bodyguard, and Dances with Wolves. His movies made him known around the world.

Liam did not choose the same career as his father. He has not become a movie star. Some reports say he works in real estate. This means helping people buy and sell homes. He keeps his work life private.

Many people want to know more about Liam Costner because of his famous family. But he does not share much about himself. He rarely appears at public events. This makes his life different from many other celebrity children.

Liam Costner’s Early Life

Liam Costner was born on November 15, 1996, in the United States. He is 29 years old as of October 2026. He will turn 30 on November 15, 2026. His birth sign is Scorpio, and he is American.

When Liam was born, his father was already a big Hollywood star. Kevin had acted in many famous movies. He had also won major awards. This meant Liam was part of a well-known family from birth.

But Liam did not grow up like a movie star. He spent much of his childhood with his mother. He had a rich family and a large home. Yet he stayed away from cameras and news stories.

Liam Costner’s Parents and Family Story

Liam Costner’s parents are Kevin Costner and Bridget Rooney. They dated during the 1990s after Kevin’s first marriage ended. Their time together was short. They never got married, but they welcomed Liam in November 1996.

Some older reports say Kevin asked for a test to make sure Liam was his son. The test confirmed he was the father. Kevin then reportedly set up a large trust fund to help Liam in the future.

Liam’s parents went their own ways after their relationship ended. He grew up mainly with his mother. Kevin has often said his children mean a lot to him. But Liam’s personal bond with Kevin is mostly kept private.

Liam Costner’s Mother

Bridget Rooney is Liam Costner’s mother. She comes from a famous American family. Her grandfather, Art Rooney, started the Pittsburgh Steelers football team in 1933. This made the Rooney family a big name in American sports.

Bridget has also done some acting work. She appeared in a short film called Zombie or Not Zombie. Still, most people know her because of her family and her past relationship with Kevin Costner.

When Bridget was pregnant, she said she was happy to have her baby. She later raised Liam while keeping much of their life private. In 2005, she married Bill Koch, a very rich American businessman.

Liam Costner’s Billionaire Stepfather

Liam Costner’s stepfather is William Koch, also called Bill Koch. He is a rich businessman from the famous Koch family. He married Liam’s mother in 2005. Liam was still a young boy at that time.

Reports say Liam lived in a very large home with his mother and stepfather. The house had many rooms and costly art. It was so big that family members sometimes used phones inside the home to talk.

Liam also had fun like other children. One story says he hid under tables during parties and pulled guests’ napkins. His mother also worried when he played near old and costly art. These stories show his playful side.

Liam Costner’s Brothers and Sisters

Liam Costner has a large family. His father, Kevin Costner, has seven children in total. Liam has three older half-siblings named Annie, Lily, and Joe. Their mother is Cindy Silva, Kevin’s first wife.

Annie works in film production. Lily has worked as an actress and singer. Joe works with sound and music. Liam also has three younger half-siblings named Cayden, Hayes, and Grace. Their mother is Christine Baumgartner.

Liam has another half-sister named Kaitlin Koch. She is the daughter of Bridget Rooney and Bill Koch. This means Liam has seven half-siblings in total. His family includes people from movies, music, sports, and business.

Liam Costner’s Education and School Life

Many people want to know where Liam Costner went to school. Some websites say he studied at Oxbridge Academy. But there is no strong public proof of this. His full school history is still not clear.

Some reports also say Liam liked playing baseball and football when he was young. His mother’s family has strong ties to football. However, there is little clear proof about the sports he played at school.

Liam has not shared much about his college life either. Some people think he studied business, but this has not been confirmed. What matters is that he has chosen a private life, away from his father’s fame.

What Does Liam Costner Do for a Living?

Liam Costner has not followed his father into Hollywood. Instead, reports say he works in real estate. This job is about helping people buy and sell homes. It is a very different career from acting in movies.

Some websites say Liam has worked with the Frankel Bell Group in Florida. The company deals with homes and land. However, his current job has not been fully confirmed. He does not share much about his work.

Why did Liam choose this path? Nobody knows for sure. His stepfather is a rich businessman, so Liam grew up around business. Still, there is no clear proof that this shaped his career choice.

Liam Costner’s Net Worth in 2026

Many people want to know how rich Liam Costner is. His father has made millions from movies and TV shows. His stepfather, Bill Koch, is also a billionaire. This has made people curious about Liam’s own money.

Some websites say Liam is worth between $1 million and $8 million. Others claim he has $800 million. But these numbers have no strong public proof. His true net worth in 2026 is still unknown.

Older reports say Kevin set up a large trust fund for Liam. This may have helped him as he grew up. However, the amount is not public. Being part of a rich family does not show how much money Liam owns.

Liam Costner’s Girlfriend and Love Life

Is Liam Costner dating someone in 2026? This is a question many readers ask. But Liam has not shared any clear news about his love life. No girlfriend has been named in reliable public reports.

Some websites say Liam is single. However, this has not been confirmed. He could be dating someone without sharing it with the public. There is also no clear public news about him having a wife or children.

Unlike many famous people, Liam does not share his private life with fans. He rarely gives interviews or talks about relationships. For now, his love life remains a mystery, and it is best not to make guesses.

Liam Costner’s Bond With Kevin Costner

Liam Costner and his father have an interesting family story. When Liam was born, Kevin was already a famous actor. Older reports say Kevin asked for a paternity test before he accepted Liam as his son.

After the test, Kevin reportedly set up a trust fund for Liam. The two did not live together full-time during Liam’s childhood. Still, Kevin has spoken many times about how much his children mean to him.

In June 2024, Kevin told PEOPLE that his children were the “anchor” of his life. He also said being a father was a big duty. Liam keeps their bond private, so little is known about their time together today.

Where Is Liam Costner Now in 2026?

So, where is Liam Costner today? As of 2026, he still stays away from Hollywood news. Some reports place him in Florida, while others say Los Angeles. His exact current home has not been confirmed.

Liam is often linked to real estate work. He has no well-known acting roles and rarely appears at movie events. He also has no widely confirmed public social media account. This makes it hard to follow his daily life.

In June 2024, five of Kevin’s children joined him at the Los Angeles premiere of Horizon: An American Saga. Liam was not among those named. Kevin later shared family photos from Thanksgiving, but Liam’s presence was not confirmed.

Final Thoughts

Liam Costner may have a famous father, but he lives a very different life. He was born into a family with ties to movies, football, and business. Still, he has stayed away from fame for many years.

His reported real estate career also makes his story interesting. While some of his brothers and sisters work in movies or music, Liam appears to prefer another path. His money, love life, and current home remain mostly private.

Today, Liam Costner is 29 years old and will turn 30 in November 2026. He is still best known as Kevin Costner’s son. But his story shows that a famous family name does not mean someone must seek fame.

(FAQs)

How Old Is Liam Costner, and When Is His Birthday?

Liam Costner was born on November 15, 1996. He is 29 years old in October 2026. He will turn 30 on November 15, 2026.

Has Liam Costner Acted in Any Movies?

No known movies feature Liam Costner. Even though his father is a famous actor, Liam has not followed him into acting. He is said to work in real estate.