Exhibit 23

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement Nos. 33-15949, 33-49740, 333-62669, and 333-140981 of Deere & Company and subsidiaries on Forms S-8 of our report dated February 27, 2019, relating to the financial statements and supplemental schedule of the John Deere Tax Deferred Savings Plan for Wage Employees, appearing in this Annual Report on Form 11-K of John Deere Tax Deferred Savings Plan for Wage Employees for the year ended October 31, 2018.

/s/ DELOITTE & TOUCHE LLP

Chicago, Illinois

February 27, 2019