Elizabeth of Lorraine-Vaudémont, Countess of Nassau-Saarbrücken (also known as Isabella of Lotharingen; c. 1395 in Lorraine – 17 January 1456 in Saarbrücken) was a German regent and translator.

Around 1437, she translated and edited four French romances (chansons de geste) by Odo Arpin of Bourges, Sibille, Loher & Maller and Hug Chapler.

Apparently John II, unlike his brother, was interested in his mother's literary activities.

In April 2007, a large poster exhibition of Elisabeth's novels was held in Saarbrücken, in the framework of the city's participation in the activities of Luxembourg as Cultural Capital of Europe.

A European Writers' Congress in Saarbrücken on 16 October 2007 had as its motto Ir herren machent fryden, with which Elisabeth began her translations.