| Mack Elwin Barham | |
| Office: | Justice of the Louisiana Supreme Court (Place Four) |
| Term Start: | 1968 |
| Term End: | 1975 |
| Preceded: | Francis Willard Hawthorne |
| Succeeded: | James L. Dennis |
| Office2: | Judge of the 4th Judicial District of Louisiana based in Monroe |
| Term Start2: | 1962 |
| Term End2: | 1968 |
| Office3: | Municipal Judge in Bastrop, Louisiana |
| Term Start3: | 1948 |
| Term End3: | 1962 |
| Birth Date: | 18 June 1924 |
| Birth Place: | Bastrop, Morehouse Parish Louisiana, USA |
| Death Place: | Covington St. Tammany Parish, Louisiana |
| Occupation: | Judge |
| Spouse: | Ann Lavois Barham |
| Children: | Bret Lane Barham Megan B. Richardson |
| Residence: | (1) Bastrop, Louisiana (2) Monroe, Ouachita Parish (3) New Orleans, Louisiana (4) Covington, Louisiana |
| Party: | Democrat |
| Alma Mater: | University of Colorado Louisiana State University Law Center |
Mack Elwin Barham (June 18, 1924 – November 27, 2006) was justice of the Louisiana Supreme Court from 1968 to 1975.[1]