Todmorden 513 is a composition by the German composer Markus Reuter.
Originally written for and recorded by a small electro-acoustic ensemble in 2010, the piece was reworked for full orchestra in 2012 with the assistance of American conductor-composer Thomas A. Blomster, and was performed in Denver, Colorado, USA in April 2013. The original electro-acoustic small-group version was released as Reuter's Todmorden 513 album on the Hyperfunction label in 2011. The 2013 orchestral version has been recorded and released on the 7D Media label.