Certification Pursuant to Rule 30a-2(b) under the 1940 Act and Section 906 of the Sarbanes-Oxley Act

I, David B. Lippman, President and Principal Executive Officer of Metropolitan West Funds (the “Registrant”), certify that:

1. The Form N-CSR of the Registrant (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant.

Date:    12/6/11	/s/David B. Lippman
	David B. Lippman, President and Principal Executive Officer (principal executive officer)

I, David S. DeVito, Treasurer of Metropolitan West Funds (the “Registrant”), certify that:

1. The Form N-CSR of the Registrant (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant.

Date:    12/6/11	/s/ David S. DeVito
	David S. DeVito, Treasurer (principal financial officer)

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