General Mills (GIS) 10-Q 2016 Q1 Quarterly report

Exhibit 32.1

I, Kendall J. Powell, Chairman of the Board and Chief Executive Officer of General Mills, Inc. (the “Company”), certify, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350, that:

(1) the Quarterly Report on Form 10-Q of the Company for the fiscal quarter ended August 30, 2015 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated: September 23, 2015

/s/ Kendall J. Powell

Kendall J. Powell

Chairman of the Board and

Chief Executive Officer