# EDGAR Filing Document

**Accession Number:** 0000745463
**File Stem:** 0000940394-23-000467
**Filing Date:** 2023-3
**Character Count:** 3987
**Document Hash:** ced922b09b2a29eee180af6985d6b838
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000940394-23-000467.hdr.sgml**: 20230315

**ACCESSION NUMBER**: 0000940394-23-000467

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20230315

**DATE AS OF CHANGE**: 20230315

**EFFECTIVENESS DATE**: 20230315

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** EATON VANCE MUTUAL FUNDS TRUST
- **CENTRAL INDEX KEY:** 0000745463
- **IRS NUMBER:** 000000000

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 002-90946
- **FILM NUMBER:** 23733602

**BUSINESS ADDRESS:**
- **STREET 1:** TWO INTERNATIONAL PLACE
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02110
- **BUSINESS PHONE:** 617-482-8260

**MAIL ADDRESS:**
- **STREET 1:** TWO INTERNATIONAL PLACE
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02110

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** EATON VANCE GOVERNMENT OBLIGATIONS TRUST
- **DATE OF NAME CHANGE:** 19920703

## Series and Classes Contracts Data

### Eaton Vance Total Return Bond Fund (Series ID: S000026932)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                 | Ticker Symbol | Class ID   |
| Eaton Vance Total Return Bond Fund Class A | EBABX         | C000081142 |
| Eaton Vance Total Return Bond Fund Class C | ECBAX         | C000081143 |
| Eaton Vance Total Return Bond Fund Class I | EIBAX         | C000081144 |

---

## Series and Classes Contracts Data

### Eaton Vance Total Return Bond Fund (Series ID: S000026932)

| Class ID   | Class Name                                 | Ticker Symbol   |
|:---|:---|:---|
| C000081142 | Eaton Vance Total Return Bond Fund Class A | EBABX           |
| C000081143 | Eaton Vance Total Return Bond Fund Class C | ECBAX           |
| C000081144 | Eaton Vance Total Return Bond Fund Class I | EIBAX           |

EATON VANCE TOTAL RETURN BOND FUND

Supplement to Statement of Additional Information dated February 1, 2023

The following replaces the table under "Share Ownership." in "Management and Organization":

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;Name of Trustee | &nbsp;&nbsp;Dollar Range of Equity Securities<br> Beneficially Owned in the Fund | &nbsp;&nbsp;Aggregate Dollar Range of Equity<br> Securities Beneficially Owned in<br> Funds Overseen by Trustee in the<br> Eaton Vance Family of Funds |
| Interested Trustee |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Thomas E. Faust Jr. |  | &nbsp;&nbsp;Over $100,000 |
| Noninterested Trustees |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Alan C. Bowser<sup>(1)</sup> |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Mark R. Fetting |  | &nbsp;&nbsp;Over $100,000 |
| &nbsp;&nbsp;&nbsp;&nbsp;Cynthia E. Frost |  | &nbsp;&nbsp;Over $100,000 |
| &nbsp;&nbsp;&nbsp;&nbsp;George J. Gorman |  | &nbsp;&nbsp;Over $100,000 |
| &nbsp;&nbsp;&nbsp;&nbsp;Valerie A. Mosley |  | &nbsp;&nbsp;Over $100,000 |
| &nbsp;&nbsp;&nbsp;&nbsp;Keith Quinton |  | &nbsp;&nbsp;Over $100,000 |
| &nbsp;&nbsp;&nbsp;&nbsp;Marcus L. Smith |  | &nbsp;&nbsp;Over $100,000 |
| &nbsp;&nbsp;&nbsp;&nbsp;Susan J. Sutherland |  | &nbsp;&nbsp; Over $100,000<sup>(2)</sup> |
| &nbsp;&nbsp;&nbsp;&nbsp;Scott E. Wennerholm |  | &nbsp;&nbsp; Over $100,000<sup>(2)</sup> |
| &nbsp;&nbsp;&nbsp;&nbsp;Nancy A. Wiser<sup>(1)</sup> |  | &nbsp;&nbsp;Over $100,000 |
| &nbsp;&nbsp; <sup>(1)</sup> Mr. Bowser and Ms. Wiser began serving as Trustees effective April 4, 2022.<br> <sup>(2)</sup> Includes shares which may be deemed to be beneficially owned through the Trustee Deferred Compensation Plan. | &nbsp;&nbsp; <sup>(1)</sup> Mr. Bowser and Ms. Wiser began serving as Trustees effective April 4, 2022.<br> <sup>(2)</sup> Includes shares which may be deemed to be beneficially owned through the Trustee Deferred Compensation Plan. | &nbsp;&nbsp; <sup>(1)</sup> Mr. Bowser and Ms. Wiser began serving as Trustees effective April 4, 2022.<br> <sup>(2)</sup> Includes shares which may be deemed to be beneficially owned through the Trustee Deferred Compensation Plan. |

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March 15, 2023