Marcel Schmelzer (born 22 January 1988) is a German footballer who plays for German Bundesliga club Borussia Dortmund as a left back. He has been capped by Germany at international level.
Schmelzer started his professional career with Borussia Dortmund, making his first appearance on 9 August 2008, in the German Cup first-round match against Rot-Weiss Essen. His first league appearance came in the following week, as he played the final twenty minutes of a 3–2 win at Bayer Leverkusen. Schmelzer had his best season for Borussia Dortmund in the 2010–11 season, where he managed to play every minute of the season for the team who went on to win the Bundesliga that year.
Schmelzer started his professional career with Borussia Dortmund, making his first appearance on 9 August 2008, in the German Cup first-round match against Rot-Weiss Essen. His first league appearance came in the following week, as he played the final twenty minutes of a 3–2 win at Bayer Leverkusen. Schmelzer had his best season for Borussia Dortmund in the 2010–11 season, where he managed to play every minute of the season for the team who went on to win the Bundesliga that year.