Document and Entity Information	Total
Risk/Return:
Document Type	497
Document Period End Date	Jan. 31, 2016
Registrant Name	EATON VANCE MUTUAL FUNDS TRUST
Central Index Key	0000745463
Amendment Flag	false
Document Creation Date	Nov. 01, 2016
Document Effective Date	Nov. 01, 2016
Prospectus Date	Jun. 01, 2016
Parametric International Equity Fund \| Investor Class
Risk/Return:
Trading Symbol	EAISX
Parametric International Equity Fund \| Institutional Class
Risk/Return:
Trading Symbol	EIISX
Parametric International Equity Fund \| Class R
Risk/Return:
Trading Symbol	ERISX
Parametric International Equity Fund \| Class R6
Risk/Return:
Trading Symbol	ESISX

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The date the document was made available and submitted, in CCYY-MM-DD format. The date of submission, date of acceptance by the recipient, and the document effective date are all potentially different.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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