Exhibit 99.6

CERTIFICATION PURSUANT TO

18 U.S.C. §1350,

AS
ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the annual report of Goldcorp Inc. (the Company) on Form 40-F for the period ended
December 31, 2014 as filed with the Securities and Exchange Commission on the date hereof (the Report), I, Charles A. Jeannes, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. §1350, as
adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) 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
this Report fairly presents, in all material respects, the financial condition and results of operations of the Company.



|                     |  |        |  |                                      
|-------------------- |  | ------ |  | -------------------------------------
|Date: March 17, 2015 |  | By:    |  | /s/ Charles A. Jeannes               
|                     |  | Name:  |  | Charles A. Jeannes                   
|                     |  | Title: |  | President and Chief Executive Officer

A signed original of this written statement required by Section 906 has been provided to
Goldcorp Inc. and will be retained by Goldcorp Inc. and furnished to the Securities and Exchange Commission or its staff upon request.

This certification accompanies the annual report pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and shall not,
except to the extent required by the Sarbanes-Oxley Act of 2002, be deemed filed by the Registrant for purposes of Section 18 of the Securities Exchange Act of 1934, as amended.



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CERTIFICATION PURSUANT TO

18 U.S.C. §1350,

AS
ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the annual report of Goldcorp Inc. (the Company) on Form 40-F for the period ended
December 31, 2014 as filed with the Securities and Exchange Commission on the date hereof (the Report), I, Lindsay A. Hall, Executive Vice President and Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C.
§1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) 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 this Report fairly presents, in all material respects, the financial condition and results of operations of the Company.



|                     |  |        |  |                                                     
|-------------------- |  | ------ |  | ----------------------------------------------------
|Date: March 17, 2015 |  | By:    |  | /s/ Lindsay A. Hall                                 
|                     |  | Name:  |  | Lindsay A. Hall                                     
|                     |  | Title: |  | Executive Vice President and Chief Financial
Officer

A signed original of this written statement required by Section 906 has been provided to
Goldcorp Inc. and will be retained by Goldcorp Inc. and furnished to the Securities and Exchange Commission or its staff upon request.

This certification accompanies the annual report pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and shall not,
except to the extent required by the Sarbanes-Oxley Act of 2002, be deemed filed by the Registrant for purposes of Section 18 of the Securities Exchange Act of 1934, as amended.