Robert Hartmann is a German football referee born on 8 September 1979. He made his Bundesliga debut on 19 February 2011. Hartmann has been a Bundesliga referee since 2011 and brings veteran top-flight experience. He is part of the current Bundesliga officiating pool and is regularly relevant for pre-match analysis, appointment previews and VAR-focused discussion.
In the 2025/26 Bundesliga season, Hartmann has officiated 10 league matches, averaging 23.80 fouls, 0.30 penalties, 3.30 yellow cards and 0.10 red cards per game. Those numbers point to a balanced but firm profile, with a solid middle ground in disciplinary terms. For The VAR Verdict, that statistical snapshot helps readers understand the disciplinary threshold and general tone he has shown this season.