Grace Avery Costner is the youngest of actor and filmmaker Kevin Costner’s seven children.
Born in 2010, she grew up in a family closely connected to Hollywood but has largely remained away from the entertainment spotlight herself. Her father is one of the most recognizable American actors and directors of his generation, known for films including Dances with Wolves, The Bodyguard, and Field of Dreams. Grace became more visible to the public through occasional family appearances, particularly alongside her father and siblings at major film events. One of her most notable public appearances came at the 2024 Cannes Film Festival during the premiere of Horizon: An American Saga. Unlike some of her older siblings, there is currently limited reliable public information about Grace’s own career or professional ambitions. Her story is therefore best understood through her family background, upbringing, public appearances, and the careful boundary between celebrity life and personal privacy.
Quick Bio
| Detail | Information |
|---|---|
| Full Name | Grace Avery Costner |
| Known For | Being the youngest daughter of Kevin Costner |
| Famous Connection | Kevin Costner |
| Relationship | Daughter |
| Profession | No reliably documented professional career |
| Birth Date | June 2, 2010 |
| Birthplace | Los Angeles, California, United States |
| Nationality | American |
| Children | None publicly documented |
| Education | Not reliably documented in authoritative public sources |
| Current/Public Status | Maintains a largely private life; occasional public appearances with family |
Who Is Grace Avery Costner?
Grace Avery Costner was born on June 2, 2010, in Los Angeles, California, to Kevin Costner and Christine Baumgartner. Her birth was announced by Costner’s representatives, who confirmed that she was the couple’s third child together.
Grace is the youngest of Kevin Costner’s seven children. Her older siblings include Annie, Lily, Joe, Liam, Cayden, and Hayes Costner. Her three youngest siblings—Cayden, Hayes, and Grace—were born during Costner’s marriage to model and designer Christine Baumgartner.
Although being the daughter of a major Hollywood star naturally places Grace in the public eye, she has not built a public career of her own. Reliable reporting about her has generally centered on family milestones and occasional appearances alongside her father rather than on independent professional achievements.
That distinction is important. There are numerous online pages that attempt to fill in details about Grace’s personality, education, interests, or future plans, but much of that material is not supported by strong primary or established journalistic sources. For a teenager who has largely remained private, the most responsible profile is one based on what has actually been documented.
Grace’s Early Family Life
Grace was born into a particularly well-established Hollywood family. By the time she arrived in 2010, her father had already spent decades working as an actor, director, producer, and musician.
Her older siblings had also grown up around the entertainment industry. Annie and Lily Costner developed connections to film and music, while Joe Costner worked in audio. Her younger brothers Cayden and Hayes were raised during the later part of Kevin and Christine Baumgartner’s marriage.
Grace’s position as the youngest child meant that she grew up with siblings who were at very different stages of life. Her oldest half-siblings were already adults or approaching adulthood when she was born, while Cayden and Hayes were only a few years older.
This gave the Costner family a wide age range, something that has occasionally been visible during family gatherings and public appearances.
Who Is Kevin Costner?
Kevin Costner is an American actor, director, producer, and musician whose career has stretched across more than four decades. He became one of Hollywood’s leading stars through films such as The Untouchables, Bull Durham, Field of Dreams, Dances with Wolves, and The Bodyguard.
Costner also established himself as a filmmaker. He directed and starred in Dances with Wolves, which won the Academy Award for Best Picture, while Costner himself received the Academy Award for Best Director.
His career later expanded into television, most notably with his acclaimed role as John Dutton in the drama series Yellowstone. His work across film and television has made him a major figure in American entertainment.
For Grace, her father’s fame is an important part of the public interest surrounding her. However, Kevin Costner’s career should be viewed as context for Grace’s story rather than as the story itself. Grace has largely remained outside the professional spotlight that has defined her father’s career.
Growing Up as Kevin Costner’s Daughter
Being Kevin Costner’s daughter comes with an obvious connection to one of Hollywood’s most recognizable careers, but Grace has not been pushed into the same public path as her father.
Kevin Costner has frequently spoken publicly about fatherhood and the importance of spending time with his children. His seven children come from three different relationships, making family an important part of his life alongside his decades-long career.
For Grace, however, the public record remains relatively small. She has appeared at selected events with her father, but there is no reliable evidence that she has established herself as an actor, singer, producer, or other entertainment professional.
That makes her different from several members of the Costner family who have accumulated professional credits in film, television, music, or production.
The Relationship Between Grace and Kevin Costner
Grace’s most important public connection is naturally her relationship with her father, Kevin Costner.
Costner has described his children as an important part of his life, and Grace has occasionally accompanied him to high-profile events. Their appearances together have generally been family occasions rather than publicity centered specifically on Grace.
One of the clearest examples came in 2024, when Grace joined five of her seven children at the Cannes Film Festival. The family attended the premiere of Horizon: An American Saga, Costner’s ambitious Western project.
The appearance was notable because it brought together several branches of Costner’s family on one of the world’s most prominent film stages. Grace was there alongside her siblings Annie, Lily, Cayden, and Hayes.
A Rare Cannes Film Festival Appearance
May 2024 marked one of the most visible moments in Grace Avery Costner’s public life.
Kevin Costner brought five of his children to Cannes for the premiere of Horizon: An American Saga. Grace appeared on the red carpet with her father and siblings, creating a rare family photograph that attracted considerable entertainment-media attention.
The event was particularly meaningful because Horizon represented a major personal and professional undertaking for Costner. He directed, co-wrote, and starred in the project, which had been a long-developing passion project for him.
Grace was not presented as part of the film’s cast. Instead, her presence reflected her role as Costner’s daughter and a member of his family supporting him during an important career moment.
Costner became emotional following the film’s Cannes screening and spoke about how meaningful it was to have his children present. The family appearance therefore became one of the clearest public examples of Grace accompanying her father during a major professional milestone.
Grace and the Horizon: An American Saga Premiere
Grace also attended the Los Angeles premiere of Horizon: An American Saga – Chapter 1 in June 2024.
She appeared on the red carpet with her father and siblings, continuing the family presence that had begun at Cannes. The Los Angeles appearance was another indication that Grace occasionally participates in significant family events even though she does not maintain a highly public celebrity profile.
Her brother Hayes had a direct professional connection to the project, appearing in the film. Grace’s role at the premiere was different: she was there as part of the Costner family rather than as a performer.
This distinction is useful when discussing Grace because public photographs from Hollywood events can sometimes create the impression that every family member is pursuing the entertainment business. In Grace’s case, there is no reliable public record establishing an acting or filmmaking career.
Grace’s Place Among Kevin Costner’s Seven Children
Grace is the youngest of Kevin Costner’s seven children.
His first three children—Annie, Lily, and Joe—were born during his marriage to Cindy Silva. Costner also has a son, Liam, from his relationship with Bridget Rooney.
Grace, Cayden, and Hayes were born during his marriage to Christine Baumgartner, whom Costner married in 2004.
The large family has occasionally appeared together at important moments. The 2024 Cannes appearance was particularly unusual because five of Costner’s seven children attended the event with him.
Grace’s place as the youngest child also means that much of her childhood took place while some of her older brothers and sisters were already pursuing adult careers.
Her Mother, Christine Baumgartner
Grace’s mother is Christine Baumgartner, who married Kevin Costner in 2004.
The couple had three children together: Cayden, Hayes, and Grace. Their marriage lasted nearly two decades before they separated and subsequently divorced.
Grace was still a child when her parents’ marriage ended, but details about her personal experience of the divorce have not been reliably documented. It would therefore be inappropriate to speculate about her feelings or private circumstances.
What is publicly established is that Grace remained part of the family story following the separation. Her father continued to speak about his role as a parent, while Grace continued to appear occasionally with members of the Costner family at public events.
Grace’s Siblings and Family Connections
Grace has six siblings, giving her one of the larger celebrity-family circles in Hollywood.
Her older half-siblings Annie, Lily, and Joe are children from Kevin Costner’s first marriage to Cindy Silva. Liam is her half-brother through Costner’s relationship with Bridget Rooney.
Cayden and Hayes are Grace’s full brothers and were raised alongside her during Costner’s marriage to Christine Baumgartner.
Several of Grace’s siblings have developed careers connected to entertainment. Annie Costner has worked in documentary production, while Lily Costner has pursued music and acting. Hayes also entered the acting world through Horizon: An American Saga.
Grace, by contrast, has so far remained comparatively private.
Does Grace Avery Costner Have an Acting Career?
There is no reliable evidence that Grace Avery Costner has established an acting career.
Her appearances at film premieres and other public events should not be confused with professional screen work. While several of Kevin Costner’s children have appeared in films or pursued careers related to entertainment, Grace has not been reliably documented as having followed the same path.
That could change as she gets older, but there is currently no sound basis for predicting whether she will enter Hollywood.
For now, her public identity remains primarily connected to her family rather than to a profession of her own.
Life Away From the Hollywood Spotlight
Grace’s limited public profile is one of the most important parts of her story.
Unlike her father, she does not maintain a decades-long career that generates regular interviews, professional announcements, or public appearances. Most established reporting about her concerns her birth, her family relationships, or occasional appearances with Kevin Costner and her siblings.
Because Grace is still young, information about her education, daily life, friendships, residence, and personal interests is not broadly documented through authoritative sources.
The lack of information should not be interpreted as evidence that she has no interests or ambitions. It simply means those aspects of her life have not been reliably made public.
What Is Known About Grace Today?
As of 2026, Grace Avery Costner is 16 years old.
Her most significant publicly documented appearances remain family-related, particularly her appearances alongside Kevin Costner and her siblings during the 2024 Horizon: An American Saga premieres.
There is no authoritative public record establishing a current professional career, business venture, or major independent public role for Grace. Information about her education and private life is also limited.
Given her age and relatively private upbringing, that limited public footprint is unsurprising.
Grace Avery Costner’s Net Worth and Financial Life
There is no authoritative public estimate of Grace Avery Costner’s personal net worth.
Online celebrity websites may publish numerical estimates, but such figures should not be treated as verified financial information. Grace is a minor and has not established a documented independent professional career or business portfolio from which a reliable personal wealth figure could be calculated.
Her father, Kevin Costner, has had a long and financially successful career in film and television, but his wealth should not automatically be attributed to Grace as her own personal net worth.
Family wealth, potential inheritance, property ownership, and personal net worth are separate matters, and there is insufficient reliable public information to establish Grace’s individual financial position.
Life After Her Parents’ Separation
Kevin Costner and Christine Baumgartner separated in 2023 after nearly 19 years of marriage.
The separation and subsequent divorce received substantial media coverage, but reliable reporting about Grace’s personal experience has remained limited. Since she was still a teenager, it is especially important not to speculate about her private feelings or circumstances.
What is publicly visible is that Grace continued to appear with her father and siblings after the separation, including during the 2024 promotional events surrounding Horizon: An American Saga.
Her public life therefore continued to be centered around family rather than an independent celebrity career.
A Life Still Being Written
At 16, Grace Avery Costner is still at an age when her future career and public identity can change considerably.
Some of her siblings have chosen paths connected to acting, music, filmmaking, or production, but there is no reliable evidence that Grace has selected a similar direction.
It would therefore be premature to attach a professional label to her or predict what she will do next.
For now, the most accurate portrait is of a teenager who grew up as the youngest child of a major Hollywood figure and who has maintained a much quieter public presence than her father.
Conclusion
Grace Avery Costner occupies a unique place in Kevin Costner’s family as his youngest child and daughter with Christine Baumgartner. Born in 2010, she has grown up surrounded by a large family and the extraordinary Hollywood legacy created by her father.
Her occasional appearances at major events, particularly the 2024 Cannes and Los Angeles premieres of Horizon: An American Saga, have offered the public rare glimpses of her alongside Kevin and her siblings. At the same time, Grace has not established a documented entertainment career of her own.
As of 2026, much of her personal life remains private, and there is no reliable basis for filling those gaps with speculation. What is clear is that Grace Avery Costner’s story is still developing—and, unlike her famous father, she has so far had the opportunity to do so largely outside the spotlight.
FAQs
Who is Grace Avery Costner?
Grace Avery Costner is the youngest daughter of actor and filmmaker Kevin Costner and his former wife, Christine Baumgartner. She was born on June 2, 2010, in Los Angeles, California.
How is Grace Avery Costner related to Kevin Costner?
Grace is Kevin Costner’s daughter and the youngest of his seven children. She is one of the three children he shares with his former wife Christine Baumgartner.
How old is Grace Avery Costner?
Grace Avery Costner was born on June 2, 2010. As of October 2026, she is 16 years old.
Does Grace Avery Costner act?
There is no reliable evidence that Grace has established a professional acting career. She has appeared publicly at film premieres with her father, but those appearances do not establish her as an actress.
Did Grace Avery Costner attend the Cannes Film Festival with Kevin Costner?
Yes. Grace attended the 2024 Cannes Film Festival with Kevin Costner and four of her siblings for the premiere of Horizon: An American Saga. It was one of her most prominent public appearances.
Who is Grace Avery Costner’s mother?
Grace’s mother is Christine Baumgartner, who married Kevin Costner in 2004. Grace is the couple’s youngest of three children together, alongside Cayden and Hayes.
What is Grace Avery Costner’s net worth?
A verified personal net worth for Grace Avery Costner has not been publicly established. Because she is young and does not have a documented independent professional career, online estimates should not be treated as authoritative.
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