Ex. 23.1

We consent to the incorporation by reference in the Registration Statement Nos. 333-69834, 333-103925, 333-125126, 333-139032, 333-145475, 333-175175 and 333-192173 filed on Form S-8 and Registration Statement Nos. 333-69830 and 333-192171 filed on Form S-3 of FalconStor Software, Inc. and subsidiaries of our reports, dated March 13, 2014, with respect to the consolidated balance sheets of FalconStor Software, Inc. and subsidiaries as of December 31, 2013 and 2012, and the related consolidated statements of operations, comprehensive loss, stockholders’ equity, and cash flows for each of the years in the three-year period ended December 31, 2013, and the effectiveness of internal control over financial reporting as of December 31, 2013, which reports appear in the December 31, 2013 annual report on Form 10-K of FalconStor Software, Inc.