Exhibit 23.1
Consent of Independent Registered Public Accounting Firm
The Board of Directors
Northfield Bancorp, Inc.:
We consent to incorporation by reference in the Registration Statement No. 333-186270 of Northfield Bancorp, Inc. on Form S-8 of our report dated June 28, 2018, relating to the financial statements appearing in this Annual Report on Form 11-K of the Northfield Bank Employee Savings Plan.
/s/ WithumSmith+Brown, PC
Whippany, New Jersey
June 28, 2018