Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

To the Nautilus, Inc. Administrative Committee

Nautilus, Inc. 401(k) Savings Plan

Vancouver, Washington

We consent to the incorporation by reference in the Registration Statement (Form S-8 No. 333-46936) pertaining to the Nautilus, Inc. 401(k) Savings Plan of our report dated June 10, 2021, with respect to the financial statements and supplemental schedule of the Nautilus, Inc. 401(k) Savings Plan included in this Annual Report (Form 11-k) for the year ended December 31, 2020.

/s/ KBF CPAs LLP

Portland, Oregon

June 10, 2021