The following is a list of alternates for the 2023 Massachusetts Open Championship.
To review Mass Golf’s alternate policy in full, please click here. Any questions about the alternate policy can be directed to Kevin Eldridge via email (keldridge@massgolf.org) or phone (774-430-9103).
| Rank | Name | Affiliation | Qualifying Site | Date Added |
| 1 | Henry Smith | Edgartown GC | The Ridge Club | 5/31 |
| 2 | Artie Wilson | West Warwick, RI | Foxborough CC | 5/31 |
| 3 | Jacob Hollander | Peterborough, NH | Foxborough CC | 5/31 |
| 4 | John Cammarano | Wellesley CC | Pleasant Valley CC | 5/31 |
| 5 | Brendan Roy | Sterling National CC | Pleasant Valley CC | 5/31 |
| 6 | Nick Leblanc | Wayland CC | Kernwood CC | 5/31 |
| 7 | Jason Parajeckas | Pleasant Valley CC | Pleasant Valley CC | 5/31 |
| 8 | Kevin Kraft | Harrisburg, PA | CC of Pittsfield | 5/31 |
| 9 | Evan Grenus | Jupiter, FL | CC of Pittsfield | 5/31 |
| 10 | Shuvam Bhaumik | Thorny Lea GC | The Ridge Club | 5/31 |
| 11 | Rey Garcia | Wedgewood Pines CC | Granite Links | 5/31 |
| 12 | Matthew Oliveira | CC of New Bedford | Granite Links | 5/31 |
| 13 | Ian Rourke | Ferncroft CC | Kernwood CC | 5/31 |
| 14 | Danny Frodigh | Dedham C&PC | Granite Links | 6/3 |
| 15 | Owen Blakely | Wellesley CC | Pleasant Valley CC | 6/6 |
| 16 | Peter Ruymann | Oyster Harbors Club | Foxborough CC | 6/9 |
| 17 | Thomas Hurley | Student Member/MIAA | The Ridge Club | |
| 18 | Sam Goldenring | Florham Park, NJ | CC of Pittsfield | |
| 19 | Herbie Aikens | Old Sandwich GC | Foxborough CC | |
| 20 | Patrick O’Leary | Wollaston GC | Foxborough CC | |
| 21 | Nick McLaughlin | Far Corner GC | Granite Links | |
| 22 | Nick Marcoaldi | Fort Myers, FL | Granite Links | |
| 23 | Patrick Ginnity | Northern Spy CC | CC of Pittsfield | |
| 24 | Eli Kimche | Park City, Utah | CC of Pittsfield | |
| 25 | Jason Clary | Thorny Lea GC | Pleasant Valley CC | |
| 26 | Austin Baker | Nashua, NH | The Ridge Club | |
| 27 | Carson Erick | Boston GC | The Ridge Club | |
| 28 | Jonathan Hill | Granite Links GC | The Ridge Club | |
| 29 | Kolby Simmons | Foxborough CC | Foxborough CC | |
| 30 | Zachary Kovat | Sharon CC | The Ridge Club | |
| 31 | Dan White | Vesper CC | Foxborough CC | |
| 32 | Jack Moy | Pleasant Valley CC | Pleasant Valley CC | |
| 33 | Ronan Mooney | Oak Hill CC | Foxborough CC | |
| 34 | Will Englander | Cohasset GC | Foxborough CC | |
| 35 | Jackson Kingman | Concord CC | Granite Links | |
| 36 | Matthew Gover | Renaissance | Foxborough CC | |
| 37 | Josh Farmer | Haborpoint Golf Society | Granite Links | |
| 38 | Shamus Landers | Boston GC | The Ridge Club | |
| 39 | Stephen Quillinan | Renaissance | Kernwood CC |
