Adrian Kappenberger (born 25 August 1996) is a Danish professional footballer who plays for Hillerød as a goalkeeper.
Kappenberger began his career at lower-level clubs, including Oure and Fredensborg BI, before joining FC Helsingør in 2017. In June 2018, he signed with Danish Superliga club Hobro IK. There, he mainly featured as a backup to starting goalkeeper Jesper Rask.
On 11 July 2023, Kappenberger joined newly promoted Danish Superliga club Hvidovre IF on a two-year deal. On 30 May 2024, Hvidovre confirmed that they had terminated Kappenberger's contract by mutual agreement. The following day, he signed with Hillerød Fodbold on a contract until June 2026.