Treuenbrietzen is a town in the Bundesland of Brandenburg, Germany.

The town has existed since the Middle Ages and the first written evidence about it is from 1217. From 1348 to 1350 the town remained loyal to the Wittelsbach Louis V the legitimate Margrave of Brandenburg since 1323 against the revolt of the False Waldemar. This event was the origin of the town's name "true" or "faithful" Brietzen. During the Reformation, Martin Luther came in 1537 to preach in the town, but his way to the church was blocked. He preached instead under a basswood, or lime tree, which is called to this day the Lutherlinde.