The following is a list of alternates for the 2019 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 | Michael Beaty | George Wright GC | Eastward Ho! | 5/28 |
| 2 | Steve Quillinan | Sandy Burr CC | Salem CC | 5/28 |
| 3 | Burgess Houston | Framingham, MA | Pleasant Valley CC | 5/28 |
| 4 | Zach Camarra | Worcester CC | Salem CC | 5/28 |
| 5 | Al Santos | Trull Brook GC | Granite Links GC | 5/28 |
| 6 | Jamison Sindelar | Horseheads, NY | CC of Pittsfield | 5/28 |
| 7 | David Pierce | CC of Halifax | Salem CC | 5/28 |
| 8 | Braeden Zanni | Lynnfield, MA | GC at Turner Hill | 5/28 |
| 9 | J.P. Chouinard | Marlborough CC | Salem CC | 5/28 |
| 10 | Chris Houston | Gilford, NH | GC at Turner Hill | 5/28 |
| 11 | Jake Kramer | Bass Rocks GC | GC at Turner Hill | 5/28 |
| 12 | Ryan Pelletier | Pawtucket CC | CC of Pittsfield | 5/28 |
| 13 | Mark DeCourcey | Lexington GC | Salem CC | 5/28 |
| 14 | Ryan Whitney | Old Sandwich GC | Eastward Ho! | 5/28 |
| 15 | Gregg Bonheur | Andover CC | Salem CC | n/a |
| 16 | Timothy Umphrey | Tatnuck CC | Pleasant Valley CC | 5/29 |
| 17 | Mark Medeiros | Allendale CC | Granite Links GC | 5/30 |
| 18 | Dylan Evans | Granite Links GC | Eastward Ho! | 5/31 |
| 19 | Victor Galvani | Framingham CC | GC at Turner Hill | 6/4 |
| 20 | Brian Houle | Boston GC | Eastward Ho! | 6/4 |
| 21 | Steven Tasho | Thorny Lea GC | Eastward Ho! | 6/6 |
| 22 | Chandler Morris | Hobe Sound, FL | Pleasant Valley CC | 6/6 |
| 23 | Dillon Brown | CC of Halifax | Pleasant Valley CC | 6/7 |
| 24 | Ben Balter | Weston GC | GC at Turner Hill | 6/7 |
| 25 | Brian Bassett | Oyster Harbors | Pleasant Valley CC | n/a |
| 26 | Marty McDonald | Worcester CC | Salem CC | 6/8 |
