Exhibit 32.1

Certification of Chief Executive Officer and Chief Financial Officer

Pursuant to

18 U.S. C. Section 1350

as adopted pursuant to

Section 906 of The Sarbanes-Oxley Act of 2002

The undersigned, the President and Chief Executive Officer of Western Asset Mortgage Capital Corporation (the "Company"), hereby certifies on the date hereof, pursuant to 18 U.S.C. 1350(a), as adopted pursuant to Section 906 of The Sarbanes-Oxley Act of 2002, that the Annual Report on Form 10-K for the period ended December 31, 2017 (the "Form 10-K"), fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, and that the information contained in the Form 10-K fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date:	March 29, 2018	By:	/s/ Jennifer W. Murphy
			Name:	Jennifer W. Murphy
			Title:	President and Chief Executive Officer

The undersigned, the Chief Financial Officer (principal financial officer and principal accounting officer) of Western Asset Mortgage Capital Corporation (the "Company"), hereby certifies on the date hereof, pursuant to 18 U.S.C. 1350(a), as adopted pursuant to Section 906 of The Sarbanes-Oxley Act of 2002, that the Annual Report on Form 10-K for the period ended December 31, 2017 (the "Form 10-K"), fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, and that the information contained in the Form 10-K fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date:	March 29, 2018	By:	/s/ LISA MEYER
			Name:	Lisa Meyer
			Title:	Chief Financial Officer & Treasurer

The written statement is being furnished and shall not be deemed filed by the Company for purposes of Section 18 of the Securities Exchange Act of 1934, as amended.

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