Adam Kleis-Kristoffersen (born 14July 2008) is a Danish footballer forward who plays for Danish Superliga club Viborg and the Danish national under-19 team.
Career Kleis-Kristoffersen began his youth career at Viborg Søndermarken IK, before moving to Viborg FF as an under-13 player. In July2023, it was announced that he had won the Viborg's player of the year as part of their under-15 squad, before signing a new three-year contract with the club in September. 11 months later in August2024, he was awarded a new contract with the club following a season in which he scored 34 goals in 30 games as part of Viborg's under-17 youth team. The new contract extended his deal with the club until August2027. In May2025, he scored both goals for Viborg's under-19 team in a 3–2 loss to Silkeborg's under-19 team, losing the Jutland Cup final.
Kleis-Kristoffersen began making sporadic appearances with Viborg's first team in 2025 during friendlies. On 24September, he made his professional debut for Viborg in a Danish Cup third round match against BV Oksbøl. He played 29minutes in Viborg's 6–0 win. He again made an appearance in Viborg's next cup match against fellow Danish Superliga club FC Fredericia, replacing captain Jeppe Grønning in the 84thminute and receiving a yellow card in the closing minutes of the second half.
On 22April 2026, Kleis-Kristoffersen made his Danish Superliga debut in a 0–1 loss against Brøndby. In a rivalry match versus FC Midtjylland on 3May, he assisted in the game's decisive 89thminute goal for a 3–3 draw.
Klein-Kristoffersen signed a new contract with Viborg ahead of the 2026–27 season until the summer of 2030. He was promoted to the first-team squad permanently with the contract. He scored his first goal in a 4–1 victory versus FC Nordsjælland on 20September 2026.
Career statistics
+ Appearances and goals by club, season and competitionClubSeasonLeagueCupOtherTotalDivisionAppsGoalsAppsGoalsAppsGoalsAppsGoalsViborg 2025–26 Danish Superliga 3030—60 2026–27 Danish Superliga 8110—91Career total1114000151
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