Thomas Silberhorn (born 12 November 1968) is a German lawyer and politician of the Christian Social Union (CSU) who has been serving as a member of the Bundestag from the state of Bavaria since 2002.

In the negotiations to form a coalition government of the Christian Democrats (CSU together with the CDU) and the FDP following the 2009 federal elections, Silberhorn was part of the CDU/CSU delegation in the working group on foreign affairs, defense, Europe and development policy, led by Franz Josef Jung and Werner Hoyer.

In the third cabinet of Chancellor Angela Merkel from 2013 to 2017, Silberhorn served as Parliamentary State Secretary at the Federal Ministry of Economic Cooperation and Development under minister Gerd Müller.

In the negotiations to form another coalition government under Merkel's leadership following the 2017 federal elections, Silberhorn was part of the working group on foreign policy, led by Ursula von der Leyen, Gerd Müller and Sigmar Gabriel.

From 2018 until 2021, Silberhorn served (alongside Peter Tauber) as one of two Parliamentary State Secretaries at the Federal Ministry of Defence under successive ministers Ursula von der Leyen (2018–2019) and Annegret Kramp-Karrenbauer (2019–2021).