Janek Sternberg (born 19 October 1992) is a German professional footballer who plays as a left-back for VfB Lübeck.
Club career
Sternberg joined Werder Bremen in 2013 from Hamburger SV. After initially playing matches with Werder's reserve team, he made his first team debut in a Bundesliga game against SC Paderborn 07 on 29 November, 2014. He played the full game in a 4–0 home win.
On 21 January, 2017, Sternberg joined Ferencváros.
In May 2018, 1. FC Kaiserslautern, newly relegated to the 3. Liga, announced Sternberg would join for the 2018–19 season, having agreed a contract until 2021.
On 31 January, 2020, Sternberg joined Hallescher FC on a deal lasting until the summer of 2021.
Free agent Sternberg moved to VfB Lübeck, which placed first in the Regionalliga Nord, in January 2023. He signed a one-year contract with the option of another year.
International career
Sternberg is a youth international for Germany at the U18 level.