Sebastian Pelzer (born 24 September 1980) is a German former professional footballer who played as a left-back and centre-back. Pelzer represented Germany at youth level and made 130 appearances in the second Bundesliga. As a 15-year-old Pelzer played as left-back for the German National U15 side that played against England U15's in the Olympiastadion (Berlin) in front of 70,000 people, they won 3–0. On 28 December 2019, Pelzer was announced as the new technical director for Major League Soccer franchise Chicago Fire.