# EDGAR Filing Document

**Accession Number:** 0000916053
**File Stem:** 0001104659-23-008674
**Filing Date:** 2023-1
**Character Count:** 25100
**Document Hash:** a5ccdc67466a121b266a8fc07dbc02a0
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-23-008674.hdr.sgml**: 20230131

**ACCESSION NUMBER**: 0001104659-23-008674

**CONFORMED SUBMISSION TYPE**: 497J

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20230131

**DATE AS OF CHANGE**: 20230131

**EFFECTIVENESS DATE**: 20230131

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MASSMUTUAL SELECT FUNDS
- **CENTRAL INDEX KEY:** 0000916053
- **IRS NUMBER:** 000000000
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 0930

**FILING VALUES:**
- **FORM TYPE:** 497J
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-73824
- **FILM NUMBER:** 23573282

**BUSINESS ADDRESS:**
- **STREET 1:** 1295 STATE STREET
- **CITY:** SPRINGFIELD
- **STATE:** MA
- **ZIP:** 01111
- **BUSINESS PHONE:** 413-744-1000

**MAIL ADDRESS:**
- **STREET 1:** 1295 STATE STREET
- **CITY:** SPRINGFIELD
- **STATE:** MA
- **ZIP:** 01111

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** MASSMUTUAL INSTITUTIONAL FUNDS
- **DATE OF NAME CHANGE:** 19931213

## Series and Classes Contracts Data

### MassMutual Growth Opportunities Fund (Series ID: S000003656)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010167 | Class A              | MMAAX           |
| C000010168 | Administrative Class | MAGLX           |
| C000010169 | Class R3             | MMANX           |
| C000010170 | Class R5             | MGRSX           |
| C000010171 | Service Class        | MAGYX           |
| C000108420 | Class I              | MMAZX           |
| C000140350 | Class R4             | MMGFX           |
| C000240787 | Class Y              |  |

### MassMutual Blue Chip Growth Fund (Series ID: S000003658)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010176 | Class A              | MBCGX           |
| C000010177 | Administrative Class | MBCLX           |
| C000010178 | Class R3             | MBCNX           |
| C000010179 | Class R5             | MBCSX           |
| C000010180 | Service Class        | MBCYX           |
| C000140351 | Class I              | MBCZX           |
| C000140352 | Class R4             | MBGFX           |
| C000240788 | Class Y              |  |

### MassMutual Fundamental Value Fund (Series ID: S000003659)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010181 | Class A              | MFUAX           |
| C000010182 | Administrative Class | MFULX           |
| C000010183 | Class R3             | MFUNX           |
| C000010184 | Class R5             | MVUSX           |
| C000010185 | Service Class        | MFUYX           |
| C000093668 | Class I              | MFUZX           |
| C000140353 | Class R4             | MFUFX           |
| C000240789 | Class Y              |  |

### MM S&P 500 Index Fund (Series ID: S000003661)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010191 | Class R4             | MIEAX           |
| C000010193 | Class R3             | MMINX           |
| C000010194 | Service Class        | MMIEX           |
| C000010195 | Administrative Class | MIEYX           |
| C000010196 | Class R5             | MIEZX           |
| C000108421 | Class I              | MMIZX           |
| C000140354 | Class A              | MMFFX           |

### MassMutual Mid Cap Growth Fund (Series ID: S000003665)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010212 | Class A              | MEFAX           |
| C000010213 | Administrative Class | MMELX           |
| C000010214 | Class R3             | MEFNX           |
| C000010215 | Class R5             | MGRFX           |
| C000010216 | Service Class        | MEFYX           |
| C000093669 | Class I              | MEFZX           |
| C000140357 | Class R4             | MEFFX           |
| C000240790 | Class Y              |  |

### MassMutual Fundamental Growth Fund (Series ID: S000003666)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010217 | Class A              | MOTAX           |
| C000010218 | Administrative Class | MOTLX           |
| C000010219 | Class R3             | MOTNX           |
| C000010220 | Class R5             | MOTCX           |
| C000010221 | Service Class        | MOTYX           |
| C000140358 | Class R4             | MFGFX           |
| C000140359 | Class I              | MOTZX           |
| C000240791 | Class Y              |  |

### MassMutual Overseas Fund (Series ID: S000003667)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010222 | Class A              | MOSAX           |
| C000010223 | Administrative Class | MOSLX           |
| C000010224 | Class R3             | MOSNX           |
| C000010225 | Class R5             | MOSSX           |
| C000010226 | Service Class        | MOSYX           |
| C000093670 | Class I              | MOSZX           |
| C000140360 | Class R4             | MOSFX           |
| C000240792 | Class Y              |  |

### MassMutual Small Cap Growth Equity Fund (Series ID: S000003668)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010227 | Class A              | MMGEX           |
| C000010228 | Administrative Class | MSGLX           |
| C000010229 | Class R3             | MSGNX           |
| C000010230 | Class R5             | MSGSX           |
| C000010231 | Service Class        | MSCYX           |
| C000093671 | Class I              | MSGZX           |
| C000140361 | Class R4             | MSERX           |
| C000240793 | Class Y              |  |

### MassMutual Small Company Value Fund (Series ID: S000003671)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010242 | Class A              | MMYAX           |
| C000010243 | Administrative Class | MMYLX           |
| C000010244 | Class R3             | MSVNX           |
| C000010245 | Class R5             | MSVSX           |
| C000010246 | Service Class        | MMVYX           |
| C000093672 | Class I              | MSVZX           |
| C000140368 | Class R4             | MMVFX           |
| C000240794 | Class Y              |  |

### MassMutual Strategic Bond Fund (Series ID: S000003673)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010252 | Class A              | MSBAX           |
| C000010253 | Administrative Class | MSBLX           |
| C000010254 | Class R3             | MSBNX           |
| C000010255 | Class R5             | MBSSX           |
| C000010256 | Service Class        | MBSYX           |
| C000140369 | Class I              | MSBZX           |
| C000140370 | Class R4             | MSBRX           |
| C000240795 | Class Y              |  |

### MassMutual RetireSMART by JPMorgan 2020 Fund (Series ID: S000003675)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010262 | Class A              | MRTAX           |
| C000010264 | Class R3             | MRTNX           |
| C000010265 | Service Class        | MRTSX           |
| C000010266 | Administrative Class | MRTYX           |
| C000140371 | Class I              | MRTDX           |
| C000140372 | Class R5             | MRTBX           |
| C000140373 | Class R4             | MRTHX           |

### MassMutual RetireSMART by JPMorgan 2030 Fund (Series ID: S000003676)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010267 | Class A              | MRYAX           |
| C000010269 | Class R3             | MRYNX           |
| C000010270 | Service Class        | MRYSX           |
| C000010271 | Administrative Class | MRYYX           |
| C000140374 | Class I              | MRYUX           |
| C000140375 | Class R5             | MRYTX           |
| C000140376 | Class R4             | MRYZX           |

### MassMutual RetireSMART by JPMorgan 2040 Fund (Series ID: S000003677)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010272 | Class A              | MRFAX           |
| C000010274 | Class R3             | MFRNX           |
| C000010275 | Service Class        | MFRSX           |
| C000010276 | Administrative Class | MRFYX           |
| C000140377 | Class I              | MRFUX           |
| C000140378 | Class R5             | MRFTX           |
| C000140379 | Class R4             | MRFZX           |

### MassMutual RetireSMART by JPMorgan In Retirement Fund (Series ID: S000003678)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010277 | Class A              | MRDAX           |
| C000010279 | Class R3             | MDRNX           |
| C000010280 | Service Class        | MDRSX           |
| C000010281 | Administrative Class | MDRYX           |
| C000140380 | Class I              | MDRVX           |
| C000140381 | Class R5             | MDRTX           |
| C000140382 | Class R4             | MDRZX           |

### MassMutual Diversified Value Fund (Series ID: S000003679)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010282 | Class A              | MDDAX           |
| C000010283 | Administrative Class | MDDLX           |
| C000010284 | Class R3             | MDVNX           |
| C000010285 | Class R5             | MDVSX           |
| C000010286 | Service Class        | MDVYX           |
| C000140383 | Class I              | MDDIX           |
| C000140384 | Class R4             | MDDRX           |
| C000240796 | Class Y              |  |

### MassMutual Equity Opportunities Fund (Series ID: S000003681)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010292 | Class A              | MFVAX           |
| C000010293 | Administrative Class | MMFVX           |
| C000010294 | Class R3             | MFVNX           |
| C000010295 | Class R5             | MFVSX           |
| C000010296 | Service Class        | MMFYX           |
| C000093673 | Class I              | MFVZX           |
| C000140385 | Class R4             | MFVFX           |
| C000240797 | Class Y              |  |

### MassMutual Small Cap Value Equity Fund (Series ID: S000012476)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000033919 | Service Class        | MMQYX           |
| C000033920 | Class A              | MMQAX           |
| C000033921 | Administrative Class | MMQLX           |
| C000033923 | Class R5             | MMQSX           |
| C000140386 | Class I              | MMQIX           |
| C000140387 | Class R4             | MMQFX           |
| C000140388 | Class R3             | MMQTX           |
| C000240798 | Class Y              |  |

### MassMutual Mid Cap Value Fund (Series ID: S000013194)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000035486 | Class A              | MLUAX           |
| C000035487 | Administrative Class | MLULX           |
| C000035488 | Class R3             | MLUNX           |
| C000035489 | Class R5             | MLUSX           |
| C000035490 | Service Class        | MLUYX           |
| C000108422 | Class I              | MLUZX           |
| C000140389 | Class R4             | MLUFX           |
| C000240799 | Class Y              |  |

### MassMutual RetireSMART by JPMorgan 2050 Fund (Series ID: S000020009)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000056105 | Class R3             | MMRNX           |
| C000056106 | Service Class        | MMTSX           |
| C000056107 | Administrative Class | MMRYX           |
| C000056109 | Class A              | MMARX           |
| C000140393 | Class I              | MMRUX           |
| C000140394 | Class R5             | MMRTX           |
| C000140395 | Class R4             | MMRZX           |

### MassMutual RetireSMART by JPMorgan 2025 Fund (Series ID: S000028351)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000086630 | Class A              | MMSDX           |
| C000086632 | Service Class        | MMISX           |
| C000086633 | Administrative Class | MMIYX           |
| C000140403 | Class I              | MMNUX           |
| C000140404 | Class R5             | MMNTX           |
| C000140405 | ClassR4              | MMNZX           |
| C000140406 | Class R3             | MMNRX           |

### MassMutual RetireSMART by JPMorgan 2035 Fund (Series ID: S000028352)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000086634 | Class A              | MMXAX           |
| C000086636 | Service Class        | MMXSX           |
| C000086637 | Administrative Class | MMXYX           |
| C000140407 | Class I              | MMXUX           |
| C000140408 | Class R5             | MMXTX           |
| C000140409 | Class R4             | MMXZX           |
| C000140410 | Class R3             | MMXNX           |

### MassMutual RetireSMART by JPMorgan 2045 Fund (Series ID: S000028353)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000086639 | Class A              | MMKAX           |
| C000086641 | Service Class        | MMKSX           |
| C000086642 | Administrative Class | MMKYX           |
| C000140411 | Class I              | MMKUX           |
| C000140412 | Class R5             | MMKTX           |
| C000140413 | Class R4             | MMKZX           |
| C000140414 | Class R3             | MMKNX           |

### MassMutual Total Return Bond Fund (Series ID: S000029393)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000090284 | Class R5             | MSPSX           |
| C000090285 | Service Class        | MSPHX           |
| C000090286 | Administrative Class | MSPLX           |
| C000090287 | Class R4             | MSPGX           |
| C000090288 | Class R3             | MSPNX           |
| C000090289 | Class I              | MSPZX           |
| C000140415 | Class A              | MPTRX           |
| C000240800 | Class Y              |  |

### MassMutual 20/80 Allocation Fund (Series ID: S000032893)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000101523 | Class R5             | MRCSX           |
| C000101524 | Service Class        | MRCYX           |
| C000101525 | Administrative Class | MRCLX           |
| C000101526 | Class A              | MCTAX           |
| C000140416 | Class I              | MRCUX           |
| C000140417 | Class R4             | MRCZX           |
| C000140418 | Class R3             | MRCVX           |
| C000240801 | Class Y              |  |

### MassMutual 40/60 Allocation Fund (Series ID: S000032894)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000101527 | Class R5             | MROSX           |
| C000101528 | Service Class        | MRMYX           |
| C000101529 | Administrative Class | MRMLX           |
| C000101530 | Class A              | MRMAX           |
| C000140419 | Class I              | MRMUX           |
| C000140420 | Class R4             | MRMZX           |
| C000140421 | Class R3             | MRMTX           |
| C000240802 | Class Y              |  |

### MassMutual 60/40 Allocation Fund (Series ID: S000032895)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000101531 | Service Class        | MROYX           |
| C000101532 | Administrative Class | MRSLX           |
| C000101533 | Class A              | MOGAX           |
| C000101534 | Class R5             | MRSSX           |
| C000140422 | Class I              | MROUX           |
| C000140423 | Class R4             | MROZX           |
| C000140424 | Class R3             | MROTX           |
| C000240803 | Class Y              |  |

### MassMutual 80/20 Allocation Fund (Series ID: S000032896)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000101535 | Class R5             | MRRSX           |
| C000101536 | Service Class        | MRGYX           |
| C000101537 | Administrative Class | MRGLX           |
| C000101538 | Class A              | MRRAX           |
| C000140425 | Class I              | MRGUX           |
| C000140426 | Class R4             | MRGZX           |
| C000140427 | Class R3             | MRGVX           |
| C000240804 | Class Y              |  |

### MassMutual RetireSMART by JPMorgan 2055 Fund (Series ID: S000042052)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000130636 | Service Class        | MMWSX           |
| C000130637 | Administrative Class | MMWYX           |
| C000130639 | Class A              | MMWAX           |
| C000140434 | Class I              | MMWZX           |
| C000140435 | Class R5             | MMWUX           |
| C000140436 | Class R4             | MMWEX           |
| C000140437 | Class R3             | MMWTX           |

### MassMutual RetireSMART by JPMorgan 2060 Fund (Series ID: S000051694)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000162675 | Class I              | MMWIX           |
| C000162676 | Class R5             | MMWHX           |
| C000162677 | Service Class        | MMWGX           |
| C000162678 | Administrative Class | MMWFX           |
| C000162679 | Class A              | MMWDX           |
| C000162680 | Class R4             | MMWCX           |
| C000162681 | Class R3             | MMWBX           |

### MM Equity Asset Fund (Series ID: S000055552)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000174852 | Class I      | MSEJX           |

### MassMutual Select T. Rowe Price Retirement Balanced Fund (Series ID: S000061101)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198028 | Class I      | MMBVX           |
| C000198029 | Class M5     | MMBWX           |
| C000198030 | Class M4     | MMBYX           |
| C000198031 | Class M3     | MMBZX           |

### MassMutual Select T. Rowe Price Retirement 2045 Fund (Series ID: S000061102)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198032 | Class I      | MMFTX           |
| C000198033 | Class M5     | MMFUX           |
| C000198034 | Class M4     | MMFWX           |
| C000198035 | Class M3     | MMFZX           |

### MassMutual Select T. Rowe Price Retirement 2050 Fund (Series ID: S000061103)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198036 | Class I      | MMDDX           |
| C000198037 | Class M5     | MMDFX           |
| C000198038 | Class M4     | MMDGX           |
| C000198039 | Class M3     | MMDHX           |

### MassMutual Select T. Rowe Price Retirement 2055 Fund (Series ID: S000061104)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198040 | Class I      | MMDJX           |
| C000198041 | Class M5     | MMDKX           |
| C000198042 | Class M4     | MMDMX           |
| C000198043 | Class M3     | MMDOX           |

### MassMutual Select T. Rowe Price Retirement 2060 Fund (Series ID: S000061105)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198044 | Class I      | MMSKX           |
| C000198045 | Class M5     | MMSOX           |
| C000198046 | Class M4     | MMSGX           |
| C000198047 | Class M3     | MMSVX           |

### MassMutual Select T. Rowe Price Bond Asset Fund (Series ID: S000061106)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198048 | Class I      | MMBEX           |

### MassMutual Select T. Rowe Price Emerging Markets Bond Fund (Series ID: S000061107)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198049 | Class I      | MMEMX           |

### MassMutual Select T. Rowe Price Large Cap Blend Fund (Series ID: S000061108)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198050 | Class I      | MMLRX           |

### MassMutual Select T. Rowe Price Limited Duration Inflation Focused Bond Fund (Series ID: S000061109)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198051 | Class I      | MMLDX           |

### MassMutual Select T. Rowe Price Real Assets Fund (Series ID: S000061110)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198052 | Class I      | MMRFX           |

### MassMutual Select T. Rowe Price Small and Mid Cap Blend Fund (Series ID: S000061111)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198053 | Class I      | MMBUX           |

### MassMutual Select T. Rowe Price Retirement 2005 Fund (Series ID: S000061112)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198054 | Class I      | MMFBX           |
| C000198055 | Class M5     | MMFDX           |
| C000198056 | Class M4     | MMFEX           |
| C000198057 | Class M3     | MMFGX           |

### MassMutual Select T. Rowe Price U.S. Treasury Long-Term Index Fund (Series ID: S000061113)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198058 | Class I      | MMUTX           |

### MassMutual Select T. Rowe Price International Equity Fund (Series ID: S000061114)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198059 | Class I      | MMIUX           |

### MassMutual Select T. Rowe Price Retirement 2010 Fund (Series ID: S000061115)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198060 | Class M5     | MMXCX           |
| C000198061 | Class M4     | MMXDX           |
| C000198062 | Class M3     | MMXEX           |
| C000198063 | Class I      | MMXBX           |

### MassMutual Select T. Rowe Price Retirement 2015 Fund (Series ID: S000061116)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198064 | Class I      | MMFHX           |
| C000198065 | Class M5     | MMFJX           |
| C000198066 | Class M4     | MMFKX           |
| C000198067 | Class M3     | MMFLX           |

### MassMutual Select T. Rowe Price Retirement 2020 Fund (Series ID: S000061117)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198068 | Class I      | MMTWX           |
| C000198069 | Class M5     | MMTTX           |
| C000198070 | Class M4     | MMTUX           |
| C000198071 | Class M3     | MMTVX           |

### MassMutual Select T. Rowe Price Retirement 2025 Fund (Series ID: S000061118)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198072 | Class I      | MMTFX           |
| C000198073 | Class M5     | MMTGX           |
| C000198074 | Class M4     | MMTHX           |
| C000198075 | Class M3     | MMTIX           |

### MassMutual Select T. Rowe Price Retirement 2030 Fund (Series ID: S000061119)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198076 | Class I      | MMTRX           |
| C000198077 | Class M5     | MMTOX           |
| C000198078 | Class M4     | MMTPX           |
| C000198079 | Class M3     | MMTQX           |

### MassMutual Select T. Rowe Price Retirement 2035 Fund (Series ID: S000061120)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198080 | Class I      | MMTJX           |
| C000198081 | Class M5     | MMTKX           |
| C000198082 | Class M4     | MMTLX           |
| C000198083 | Class M3     | MMTMX           |

### MassMutual Select T. Rowe Price Retirement 2040 Fund (Series ID: S000061121)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198084 | Class I      | MMFOX           |
| C000198085 | Class M5     | MMFPX           |
| C000198086 | Class M4     | MMFQX           |
| C000198087 | Class M3     | MMFRX           |

### MassMutual RetireSMART by JPMorgan 2065 Fund (Series ID: S000079614)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000240776 | Class R3             |  |
| C000240777 | Class I              |  |
| C000240778 | Class A              |  |
| C000240779 | Class R4             |  |
| C000240780 | Class R5             |  |
| C000240781 | Service Class        |  |
| C000240782 | Administrative Class |  |

### MassMutual Select T. Rowe Price Retirement 2065 Fund (Series ID: S000079615)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000240783 | Class M5     |  |
| C000240784 | Class M4     |  |
| C000240785 | Class M3     |  |
| C000240786 | Class I      |  |

**<u>COVER LETTER</u>**

January 31, 2023

Securities and Exchange Commission

100 F Street, NE

Washington, DC 20549

RE: MassMutual Select Funds (the "Trust")

(1933 Act File No. 33-73824; 1940 Act File No. 811-08274)

Ladies and Gentlemen:

Pursuant to Rule 497(j) under the Securities Act of 1933, as amended, please accept this letter as certification that the Prospectuses and Statements of Additional Information for the Trust do not differ from those contained in Post-Effective Amendment No. 113 to the Trust's Registration Statement on Form N-1A which was filed electronically on January 31, 2023.

Please address any questions or comments to the undersigned at (413) 744-0762.

Very truly yours,

/s/Andrew M. Goldberg

Andrew M. Goldberg

Lead Counsel, Investment Adviser & Mutual Funds, Massachusetts Mutual Life Insurance Company

Vice President, Secretary, and Chief Legal Officer, MassMutual Select Funds