Tambach-Dietharz is a town in the district of Gotha, in Thuringia, Germany.

It is situated in the Thuringian Forest, 19 km south of Gotha.

Since 2012, Marco Schütz (independent) is the mayor.

His predecessor was the former lieutenant from the German Army (Bundeswehr) Harald Wrona (FDP).

This Gotha district location article is a stub.