Mark O’Neill Family: Girlfriend, Children, Parents and Siblings

Last Updated on September 21, 2026 by Wilson

Mark O’Neill is an American professional soccer player who plays as a defender in the Seattle Sounders organization. Born on March 8, 2002, in Boulder, Colorado, O’Neill grew up in a large Irish-American sporting family before playing college soccer at Creighton University and beginning his professional career with Vancouver Whitecaps FC 2.

Sport has always been an important part of the O’Neill household. Mark is the son of Christine and Colm O’Neill and has five siblings: Darragh, Shane, Enda, Kate and Grace. Several members of the family competed at a high level in soccer, American football and basketball, making Mark one of multiple accomplished athletes in the O’Neill family.

Who Is Mark O’Neill’s Girlfriend?

Mark O’Neill has not publicly confirmed a girlfriend, fiancée or wife. His official profiles with Creighton University, Vancouver Whitecaps and Seattle Sounders primarily discuss his soccer career and family background rather than his romantic relationships.

There is also no reliable reporting from established sports outlets identifying a current partner. Although personal social-media accounts can sometimes lead to speculation about footballers’ relationships, there is not enough verified evidence to identify anyone as O’Neill’s girlfriend.

As of now, Mark O’Neill does not have a publicly confirmed girlfriend or wife.

Does Mark O’Neill Have Children?

There is no reliable public information indicating that Mark O’Neill has children. Neither his professional club biographies nor his extensive Creighton University profile mentions him being a father.

Most publicly available information about O’Neill instead focuses on his soccer development, his years at Creighton and the unusually athletic family in which he grew up.

Who Are Mark O’Neill’s Parents?

Mark O’Neill is the son of Colm O’Neill and Christine O’Neill. Creighton University explicitly identifies Christine and Colm as his parents in his official biography.

The O’Neill family has strong connections to Ireland. Colm and Christine moved from Ireland to Colorado before Mark was born and raised six children in the Boulder area. Their children grew up surrounded by sport, with soccer, Gaelic football, basketball and American football all playing significant roles in family life.

A CBS Colorado profile of the family described the O’Neills as an exceptionally athletic household and identified all six children as Darragh, Shane, Grace, Kate, Enda and Mark.

Mark O’Neill’s Father: Colm O’Neill

Mark O’Neill’s father is Colm O’Neill, a former Gaelic football player from Ireland. Colm had a notable sporting background before moving to the United States and remained closely involved in sports after settling in Colorado.

Colm played Gaelic football in Ireland and was part of Cork’s successful football era before relocating to the United States with Christine. Another member of the family, Mark’s brother Shane O’Neill, has frequently spoken about the family’s strong Cork roots and their continued connection with Ireland.

After moving to Colorado, Colm also became involved in his children’s sporting development. CBS Colorado reported that he coached the children in soccer when they were young, helping establish the foundation for a family that would eventually produce multiple college and professional athletes.

The backyard at the O’Neill home was reportedly highly competitive. Colm recalled regular soccer games between the children, demonstrating how sport became part of everyday life rather than simply an organized activity.

Mark O’Neill’s Mother: Christine O’Neill

Mark O’Neill’s mother is Christine O’Neill. She also has a sporting background, particularly in basketball.

Christine played basketball in college and later encouraged her children to participate in the sport. She also coached them in recreational basketball when they were younger, while Colm handled much of their early soccer coaching.

The combination helped create a household in which the children were encouraged to try different sports rather than specialize immediately. Mark himself became an accomplished basketball player while attending Fairview High School in Colorado.

According to Creighton University, Mark was an all-conference basketball player and a three-year high school starter. His team reached the Colorado Class 5A Final Four during the 2019-20 season before he ultimately concentrated on soccer at the collegiate level.

Mark O’Neill’s Siblings

Mark O’Neill comes from a family of six children. His five siblings are Darragh, Shane, Enda, Kate and Grace O’Neill. Creighton University provides the complete sibling list in Mark’s official player biography, while Vancouver Whitecaps independently confirms that Mark has five siblings.

Several of Mark’s brothers and sisters have impressive sporting backgrounds of their own.

Shane O’Neill

Shane O’Neill is the best-known of Mark’s siblings and became a professional soccer player long before his younger brother entered the professional game.

Born in Midleton, Ireland, in 1993, Shane moved to Colorado with the family while still very young. He developed through the Colorado soccer system and signed with Colorado Rapids as a Homegrown Player.

Shane subsequently built an extensive professional career that included spells with Colorado Rapids, clubs in Europe, Orlando City, Seattle Sounders and Toronto FC.

His career had a significant influence on Mark. Creighton’s official biography lists Shane as Mark’s sporting hero, highlighting the example his older brother provided while Mark was developing as a young player.

The connection became particularly interesting when Mark entered the Seattle Sounders organization in 2026. Shane had previously played for Seattle and was part of the Sounders squad that won the 2022 Concacaf Champions League.

Darragh O’Neill

Mark’s older brother Darragh O’Neill pursued a different form of football. Rather than becoming a professional soccer player, Darragh became an American football punter.

He played college football for the University of Colorado Buffaloes between 2011 and 2014. Creighton specifically highlights Darragh’s college football career when describing Mark’s sporting family.

Darragh’s success was another example of the athletic diversity within the O’Neill household, where the children competed in several different sports while growing up.

Enda O’Neill

Enda O’Neill is another of Mark’s brothers who pursued competitive soccer.

Enda played college soccer at the University of Wisconsin, where he eventually became a team captain. Creighton reports that he represented Wisconsin from 2014 through 2017 before spending the 2018 season at Villanova.

With Shane reaching Major League Soccer, Enda playing NCAA Division I soccer and Mark later captaining Creighton, three O’Neill brothers ultimately competed at a high level in the sport.

Grace O’Neill

Mark’s sister Grace O’Neill followed their mother’s connection to basketball. According to Creighton University, Grace played college basketball at Regis University.

Her basketball career further illustrates how the athletic ability within the O’Neill family extended beyond soccer.

Kate O’Neill

Kate O’Neill is also one of Mark’s five siblings. She was identified alongside Darragh, Shane, Grace, Enda and Mark in reporting about the family.

However, considerably less verified information is publicly available about Kate’s adult life or sporting career. Because she does not have the same public sporting profile as several of her siblings, details about her private life should not be assumed from unofficial sources.

Mark O’Neill’s Irish Family Roots

The O’Neill family has maintained strong ties to Ireland despite raising the children in Colorado. Mark’s older brother Shane was born in Midleton, County Cork, before Colm and Christine relocated to the United States.

CBS Colorado reported that the family remained deeply connected to its Irish heritage and regularly spent extended periods in Ireland while the children were growing up.

That background also created a strong Gaelic sporting influence within the household. Colm’s experience in Gaelic football existed alongside Christine’s basketball background, while the children eventually pursued soccer, basketball and American football.

How Mark O’Neill’s Family Influenced His Soccer Career

Mark O’Neill grew up with several examples of high-level athletes inside his own home. His parents had sporting backgrounds, while his older brothers were already competing in college and professional sports as Mark developed.

Shane appears to have had a particularly strong influence. Mark explicitly named Shane as his sports hero during his time at Creighton, and following an older brother who had already reached Major League Soccer provided a clear example of what a professional soccer career required.

Mark developed with Real Colorado and FC Boulder before attending Fairview High School. He later joined Creighton University in 2020 and became an important part of the Bluejays program, eventually serving as captain for three seasons.

After completing his college career, O’Neill joined Whitecaps FC 2 in 2025. His performances earned him first-team opportunities and eventually an MLS contract with Vancouver. When signing that deal, Mark publicly thanked his family, friends and former coaches, describing the achievement as a moment that belonged partly to the people who had helped him reach that level.

O’Neill joined Tacoma Defiance in February 2026 before progressing into the Seattle Sounders first-team picture. His arrival in Seattle continued an interesting family connection because Shane O’Neill had previously represented the Sounders.

As of now, Mark O’Neill has not publicly confirmed a girlfriend, wife or children. His parents are Christine and Colm O’Neill, and he has five siblings: Darragh, Shane, Enda, Kate and Grace. The O’Neill family’s extensive sporting background has been a defining part of Mark’s journey from Colorado youth soccer to the professional game.

Frequently Asked Questions About Mark O’Neill’s Family

Who is Mark O’Neill’s girlfriend?

Mark O’Neill has not publicly confirmed a girlfriend, fiancée or wife. There is currently no reliable reporting identifying a romantic partner.

Does Mark O’Neill have children?

There is no reliable public information indicating that Mark O’Neill has children.

Who are Mark O’Neill’s parents?

Mark O’Neill’s parents are Colm O’Neill and Christine O’Neill. Both have sporting backgrounds and raised their six children in Colorado after moving to the United States from Ireland.

Who is Mark O’Neill’s father?

Mark O’Neill’s father is Colm O’Neill, an Irish former Gaelic football player who later helped coach his children in soccer after the family settled in Colorado.

Who is Mark O’Neill’s mother?

Mark O’Neill’s mother is Christine O’Neill. She played basketball in college and later coached her children in recreational basketball.

How many siblings does Mark O’Neill have?

Mark O’Neill has five siblings: Darragh, Shane, Enda, Kate and Grace O’Neill.

Is Shane O’Neill Mark O’Neill’s brother?

Yes. Former MLS defender Shane O’Neill is Mark’s older brother. Mark has described Shane as his sports hero, and both brothers have been part of the Seattle Sounders organization during their professional careers.

Is Enda O’Neill Mark O’Neill’s brother?

Yes. Enda O’Neill is Mark’s brother. He played NCAA Division I soccer for Wisconsin and later Villanova.

Where is Mark O’Neill’s family from?

The O’Neill family has strong roots in Ireland, particularly County Cork. Mark was born in Boulder, Colorado, and grew up in the Louisville and Boulder area after his parents had settled in the United States.