Oskar Kubiak is a Polish professional footballer who plays for Slavia Prague. Born on September 25, 2006, in Inowrocław, Poland, he grew up in Kruszwica and began his football journey with Gopło Kruszwica before developing at Wda Świecie.
Although Kubiak is still at an early stage of his professional career, several details about Oskar Kubiak’s family are publicly known. His mother and grandfather helped introduce him to football, while his older brother, Kacper Kubiak, became one of his earliest sporting inspirations. Kacper is also a footballer and continued playing in Poland after an injury prevented him from progressing as far as his younger brother.
In contrast, Kubiak keeps his romantic life private. As of now, there is no reliable public confirmation of a girlfriend, wife or children.
Who Is Oskar Kubiak’s Girlfriend?
There is currently no reliable public information identifying Oskar Kubiak’s girlfriend or confirming that he is in a relationship.
Kubiak has participated in several interviews as his profile has grown in Polish and Czech football, particularly following his breakthrough with Sokół Kleczew, return to Arka Gdynia and subsequent transfer to Slavia Prague.
However, those interviews have concentrated on his football career, childhood, family support and ambitions rather than his romantic relationships.
No reputable Polish or Czech publication has reliably identified a girlfriend as of now. Therefore, any names connected with Kubiak through social media should not be presented as confirmed without direct evidence.
Is Oskar Kubiak Married?
There is no reliable public evidence that Oskar Kubiak is married.
No engagement or wedding has been publicly announced, and Slavia Prague’s official coverage does not identify a wife or fiancée.
Kubiak was still only 19 when he joined Slavia in June 2026 and has kept his private relationships almost entirely outside his public football profile.
Does Oskar Kubiak Have Children?
There is no reliable public information indicating that Oskar Kubiak has children.
No established football source has reported that the Polish winger is a father, and Kubiak has not publicly announced having a son or daughter.
As of now, therefore, there are no publicly confirmed children associated with him.
Who Are Oskar Kubiak’s Parents?
The names of Oskar Kubiak’s parents have not been widely disclosed publicly. However, Kubiak has spoken about his mother and the important role she played during his early football development.
His mother was involved from the very beginning. When Oskar was around six years old, she and his grandfather took him to a football training session involving his older brother, Kacper.
Watching his brother train helped spark Oskar’s ambition to become a footballer himself. Kubiak later recalled that even at that young age, he began dreaming about one day playing in Poland’s Ekstraklasa.
That childhood dream eventually became reality in February 2026, when he made his Polish top-flight debut for Arka Gdynia.
Who Is Oskar Kubiak’s Mother?
Oskar Kubiak’s mother’s name and occupation have not been reliably published, but her influence on his career is well documented through his own recollections.
She was one of the two family members, alongside his grandfather, who first took him to organized football.
Her support became particularly important several years later when Kubiak received the opportunity to leave Kruszwica and join Wda Świecie.
The move was difficult for the youngster because he was worried about living and playing farther away from home. Kubiak admitted that his initial reaction was to reject the opportunity because he feared he would become homesick and struggle to adapt.
After discussing the situation with his mother, however, they concluded that the opportunity was too important to waste.
Oskar Kubiak’s Mother Supported His Move to Wda Świecie
Kubiak’s move from Gopło Kruszwica to Wda Świecie in 2018 became one of the defining decisions of his early career.
He was only around 12 years old and had understandable concerns about leaving the environment in which he had grown up.
His mother helped him see the move as an opportunity rather than simply a separation from home. The decision ultimately proved crucial because Wda provided him with stronger competition and an environment in which his talent could develop further.
Kubiak spent several years at Wda before breaking into senior football as a teenager.
Who Is Oskar Kubiak’s Father?
There is currently no reliable public information identifying Oskar Kubiak’s father by name or explaining his profession.
Detailed profiles of Kubiak’s childhood discuss his mother, grandfather and older brother but do not provide verified information about his father.
For that reason, it would be inappropriate to speculate about his father’s identity or role in the footballer’s upbringing.
Oskar Kubiak’s Grandfather Helped Introduce Him to Football
Kubiak’s grandfather was another important influence during his childhood.
According to Kubiak, his grandfather joined his mother in taking him to his first training session with Gopło Kruszwica.
That simple family outing had a lasting effect. Oskar watched his older brother Kacper training and became fascinated with the possibility of following him into football.
Although his grandfather’s name has not been widely disclosed publicly, his involvement places him among the relatives who directly helped begin Kubiak’s football journey.
Does Oskar Kubiak Have Siblings?
Yes. Oskar Kubiak has an older brother named Kacper Kubiak.
Kacper is one of the most important people in Oskar’s football story because he was already playing the sport when his younger brother was still a small child.
Oskar’s first experience around organized football came when his mother and grandfather took him to watch Kacper train.
The younger Kubiak subsequently began playing himself and eventually developed into the more successful professional player, but Kacper also pursued football seriously.
Who Is Oskar Kubiak’s Brother Kacper Kubiak?
Kacper Kubiak is Oskar Kubiak’s older brother and is also a footballer.
Kacper developed with Gopło Kruszwica before later moving to Wda Świecie, following a route similar to the one Oskar would take.
During his youth career, Kacper was known as a productive attacking player. Coaches who knew the brothers remembered him as someone capable of scoring frequently.
Oskar has described his brother as a versatile footballer. Kacper later played primarily as a central midfielder.
Kacper Kubiak Was Oskar’s First Football Inspiration
Before professional football stars became his heroes, Kacper provided Oskar with an example inside his own family.
When six-year-old Oskar watched his older brother training with Gopło Kruszwica, he began imagining himself becoming a footballer.
Kacper therefore played an indirect but important role in starting Oskar’s career. The younger brother later identified Lionel Messi as his childhood football idol, but the initial motivation to step onto a training pitch came from watching Kacper.
Kacper Kubiak Also Joined Wda Świecie
The brothers’ football paths remained connected after Oskar moved away from Kruszwica.
Kacper also joined Wda Świecie, approximately a year after his younger brother made the move.
He showed enough ability to suggest that he could continue progressing through the Polish football system, but his development was seriously affected by injury.
Kacper Kubiak Suffered a Serious Knee Injury
Oskar has revealed that Kacper suffered a torn cruciate ligament, an injury that significantly damaged his chances of playing at a higher level.
The setback came after his brother had already shown considerable potential. According to Oskar, the injury effectively prevented Kacper from progressing as far as he otherwise might have.
Despite that disappointment, Kacper continued playing football rather than abandoning the sport completely.
Does Kacper Kubiak Still Play Football?
Yes. Kacper Kubiak has continued playing football.
During the 2025/26 season, he played as a central midfielder for Szubinianka Szubin at regional level. He also remained active in football around Kruszwica.
In August 2026, local reporting announced that Kacper had become a new player for Goplania Inowrocław.
Although his career did not reach the same professional level as Oskar’s, football therefore continues to connect the two brothers.
Does Oskar Kubiak Have a Sister?
There is currently no reliable public information confirming that Oskar Kubiak has a sister.
Detailed reporting on his upbringing specifically identifies his older brother Kacper but does not mention additional siblings.
This does not prove that no sister exists, but Kacper is the only sibling who can currently be confirmed through reliable public sources.
Oskar and Kacper Kubiak Grew Up Around Football in Kruszwica
The Kubiak brothers developed their love of football in Kruszwica, a relatively small Polish town where opportunities to reach elite football were limited compared with major cities.
Both brothers began with Gopło Kruszwica. Kacper was already playing there when Oskar arrived at his first training session.
Oskar later trained with players considerably older than himself. By around 11, he was sometimes competing on full-sized pitches against boys several years older, which forced him to develop confidence and physical resilience.
His performances soon attracted attention from coaches outside Kruszwica.
A Coach First Noticed Oskar While Watching His Brother
There is an unusual family connection behind Oskar’s eventual move to Wda Świecie.
Coach Damian Ejankowski initially attended a Gopło Kruszwica match to watch older brother Kacper.
During that match, however, the coach noticed a smaller left-footed youngster displaying unusual technical ability. That youngster was Oskar.
Ejankowski became convinced that Oskar was an exceptional prospect and later helped bring him to Wda Świecie.
In that sense, Kacper’s own football career indirectly helped his younger brother become noticed by the coach who would play an important role in his development.
Why Oskar Kubiak Was Nicknamed the “Messi of Kruszwica”
Kubiak stood out from other players from an early age because of his ability to dribble past opponents.
Ejankowski recalled that people around the local football environment began calling him the “Messi of Kruszwica”.
His sporting ability extended beyond football. As a child, Kubiak also competed in athletics, including sprinting and the long jump.
He recalled finishing second in a regional 100-metre competition in his age group and also competing at national youth level in the long jump.
Oskar Kubiak’s Family and His Homesickness
Leaving Kruszwica was not easy for Kubiak. His close attachment to home meant that his first period at Wda Świecie included considerable homesickness.
Reports about his childhood describe a youngster who sometimes struggled emotionally with being away from the familiar surroundings of his family.
Nevertheless, the decision he made together with his mother to accept the opportunity ultimately allowed his football career to progress.
Over time, Kubiak became increasingly independent and moved from youth football into the senior game.
Oskar Kubiak’s Rise Through Polish Football
After developing at Wda Świecie, Kubiak began attracting attention because of his senior performances while still a teenager.
Arka Gdynia signed him in June 2025 and immediately arranged a loan to Sokół Kleczew.
The loan became a spectacular success. Kubiak scored 14 goals in 18 league appearances during the first half of the 2025/26 season and added several assists.
His performances convinced Arka to bring him back earlier than initially planned.
Oskar Kubiak Fulfilled His Childhood Ekstraklasa Dream
The dream Kubiak first imagined while watching Kacper train became reality on February 15, 2026.
He made his Ekstraklasa debut for Arka Gdynia against Pogoń Szczecin.
Only days later, his profile increased dramatically when he scored a spectacular goal against Lechia Gdańsk in the Tricity derby.
For a young player who had grown up dreaming of Poland’s highest league, the rapid rise represented an important milestone for both Kubiak and the relatives who had supported him from childhood.
Oskar Kubiak Joined Slavia Prague in 2026
Kubiak’s performances in Poland soon attracted clubs abroad.
Slavia Prague officially announced his signing on June 25, 2026. The Polish youth international agreed to a contract running until June 2030.
Kubiak said joining Slavia was an enormous honor and explained that positive conversations with the club and his representatives convinced him that Prague offered the right environment for his development.
The transfer represented his first permanent move outside Polish football.
Frequently Asked Questions About Oskar Kubiak’s Family
Who is Oskar Kubiak’s girlfriend?
There is currently no reliable public information identifying Oskar Kubiak’s girlfriend or confirming that he is in a relationship.
Is Oskar Kubiak married?
No reliable source has confirmed that Oskar Kubiak is married.
Does Oskar Kubiak have children?
No children have been publicly confirmed for Oskar Kubiak as of now.
Who are Oskar Kubiak’s parents?
The names of his parents have not been reliably disclosed publicly. However, his mother played an important role in his early career and helped him decide to leave Kruszwica for Wda Świecie.
Who is Oskar Kubiak’s mother?
His mother’s name and profession remain private. Kubiak has confirmed that she and his grandfather took him to his first football training session.
Who is Oskar Kubiak’s father?
Reliable sources have not publicly identified Kubiak’s father or provided information about his profession.
Does Oskar Kubiak have a brother?
Yes. His older brother is Kacper Kubiak, who also plays football.
Is Kacper Kubiak a footballer?
Yes. Kacper developed at Gopło Kruszwica and Wda Świecie. A serious cruciate-ligament injury affected his chances of reaching a higher professional level, but he continued playing regional football.
Which club does Kacper Kubiak play for?
Local reporting announced in August 2026 that Kacper had joined Goplania Inowrocław. Earlier in the 2025/26 season, he played for Szubinianka Szubin.
Does Oskar Kubiak have a sister?
No sister has been reliably confirmed. Kacper is his only publicly established sibling as of now.
Who introduced Oskar Kubiak to football?
His mother and grandfather took him to his first training session, where he watched older brother Kacper play.
Where did Oskar Kubiak grow up?
Kubiak grew up in Kruszwica, Poland, and began playing for Gopło Kruszwica before joining Wda Świecie.
Siara Costa is a football editor and writer covering both European men’s and women’s football, with a focus on league competitions, match coverage, and in-depth storytelling.
