Matthias Bachinger (born 2 April 1987) is a German former tennis player who played professionally from 2005 to 2023.

He then played only Challenger level tournaments before qualifying for the 2010 If Stockholm Open, where he reached the second round.

He also reached the quarterfinals of Umag the same year, defeating seventh-seeded Martin Kližan en route.

In 2018, he reached his first ATP Tour final in Metz, again as a qualifier, after defeating Kei Nishikori in the semifinals,[1] before losing to Gilles Simon.

In April 2023, Bachinger announced his retirement and played his last professional match at the BMW Open in his hometown Munich in the doubles competition with Dominic Thiem, where they lost in the first round.