Exhibit 23

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement Nos. 333-165069, 333-62669, 333-132013, 333-140980, 333-140981, 333-202299 and 333-236655 on Form S-8 and in Registration Statement No. 333-239165 on Form S-3 of our report dated December 17, 2020, relating to the consolidated financial statements of Deere & Company and subsidiaries (“Deere & Company”), and the effectiveness of Deere & Company’s internal control over financial reporting, appearing in this Annual Report on Form 10-K of Deere & Company for the year ended November 1, 2020.

8

/s/ DELOITTE & TOUCHE LLP

Chicago, Illinois

December 17, 2020