Třemešná [German: Rowersdorf] is a village and municipality in Bruntál District in the Moravian-Silesian Region of the Czech Republic. Třemešná municipality lies in the southern part of the microregion in the deep valley of the Mušlov stream. The municipality was founded in 1245. Třemešná is the entrance gateway to the Osoblaha region, it is the starting point of the narrow-gauge railway and also the railway junction as tourists may change here travelling to Opava, Krnov or Jeseník.