Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Flushing Financial Corporation

Uniondale, New York

We hereby consent to the incorporation by reference in the Prospectus constituting a part of this Registration Statement on Form S-3 of our reports dated March 13, 2017, relating to the consolidated financial statements of Flushing Financial Corporation and the effectiveness of Flushing Financial Corporation’s internal control over financial reporting, appearing in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016.

We also consent to the reference to us under the caption “Experts” in the Prospectus.

/s/ BDO USA, LLP

New York, New York

March 29, 2017