Joachimsthal, sometimes spelled Joachimstal, may refer to:
Places Joachimsthal, Bohemia, former name of Jáchymov, Czechia, famous for its silver and uranium mines and which gave its name to the Joachimsthaler currency Joachimsthal, Brandenburg, a town in the Barnim district in the Brandenburg province, Germany Joachimsthal (Amt), the corresponding local administrative district Joachimsthalsches Gymnasium, a boarding school originally established in Joachimsthal, Brandenburg Joachimstal, now Joaoru, a subsidiary manor on the Joala estate in the Vaivara parish of Virumaa, Estonia
People Ferdinand Joachimsthal (1818–1861), Silesian-German mathematician Georg Joachimsthal (1863–1914), German physician