Exhibit 23.1
Consent of Independent Registered Public Accounting Firm
We consent to the incorporation by reference in this Registration Statement(No. 333-218901) onForm S-1 of The LGL Group, Inc. of our report dated March 29, 2017, relating to the consolidated financial statements of The LGL Group, Inc., appearing in the Annual Report onForm 10-K of The LGL Group, Inc. for the year ended December 31, 2016.
We also consent to the reference to our firm under the heading Experts in such Prospectus.
/s/ RSM US LLP
Orlando, Florida
August 21, 2017
