| Arthur R. MacKenzie | |
| Office: | Member of the Legislative Assembly of New Brunswick |
| Term Start: | 1926 |
| Term End: | 1930 |
| Constituency: | St. Stephen-Milltown |
| Birth Date: | 26 June 1873 |
| Birth Place: | St. Stephen, New Brunswick |
| Death Place: | St. Stephen, New Brunswick |
| Spouse: | Inez Tibbits |
| Party: | Conservative Party of New Brunswick |
| Occupation: | Sales manager |
| Children: | seven |
| Residence: | St. Stephen, New Brunswick |
Arthur Robert MacKenzie (June 26, 1873 – February 10, 1963) was a Canadian politician. He served in the Legislative Assembly of New Brunswick as member of the Conservative party representing St. Stephen-Milltown from 1926 to 1930.[1]