Daniel Baier

Born in Cologne, Baier first played for the youth team of TSV 1860 Munich. He generally plays an offensive midfield role. He made his league debut against 1. FC Köln on 13 September 2003.

FC Augsburg

On 31 January 2010, he left VfL Wolfsburg and returned to FC Augsburg. On 20 September 2017, Baier was fined €20,000 and suspended for one Bundesliga game, as he made a masturbation gesture at RB Leipzig coach Ralph Hasenhüttl during the 1–0 victory against Leipzig the day before. On 13 January 2020, Baier signed a one and a half year contract with the club. After 355 competitive appearances for FC Augsburg, Baier was released by the club on 23 July 2020. He announced his retirement from professional football on 9 September 2020.

He has played in the Germany national U20 team, his debut coming on 7 October 2005 against Wales.

On 16 January 2025, Baier was announced as sports coordinator with RB Leipzig, and will head the scouting, data and career departments. He had previously worked as a scout for FC Augsburg, VfL Wolfsburg, and Bayern Munich.

His father Jürgen was also a footballer who played for Darmstadt 98. His brother Benjamin, who is also a midfielder, currently plays for Viktoria Aschaffenburg.