The Sorbian March (Latin: limes Sorabicus, German: Sorbenmark) was a frontier district on the eastern border of East Francia in the 9th through 11th centuries. It was composed of several counties bordering the Sorbs. The Sorbian March seems to have comprised the eastern part of Thuringia.
The Sorbian March was sometimes referred to as the Thuringian March. The term "Sorbian March" appears only four times in the Annales Fuldenses.