| Melvin Bernard Breath | |
| Term Start: | 1919 |
| Term End: | 1921 |
| Successor: | Lawrence F. Quigley |
| Office2: | Member of the Massachusetts House of Representatives 26th Suffolk District |
| Term Start2: | 1911 |
| Term End2: | 1912 |
| Office3: | Member of the Chelsea, Massachusetts Board of Aldermen |
| Term Start3: | 1908 |
| Term End3: | 1908 |
| Birth Date: | March 28, 1881 |
| Death Date: | July 1, 1950 (aged 69) |
| Alma Mater: | Boston College, Boston University School of Law |
| Profession: | Lawyer |
| Spouse: | Lillian Constance Murray |
Melvin Bernard Breath (March 28, 1881 – July 1, 1950) was an American lawyer and politician who served in the Massachusetts House of Representatives; and on the Board of Aldermen, and as the thirtieth Mayor of Chelsea, Massachusetts.
Breath was born on March 28, 1881, to Melvin L. and Maria (Noone) Breath.
Breath attended the Chelsea, Massachusetts public schools, he graduated from Chelsea High School, Boston College and Boston University School of Law.
Melvin B. Breath was a partner, with Robert W. Frost, in the law firm of Frost and Breath, their offices were in the Tremont Building (no. 817), 110 Tremont Street, Boston, Massachusetts.