| Betty Lou Mitchell | |
| State Senate: | Maine |
| State: | Maine |
| District: | 10th |
| Term Start: | 1996 |
| Term End: | 2004 |
| Preceded: | Alton Cianchette |
| Succeeded: | Debra Plowman |
| Birth Date: | 14 August 1937 |
| Birth Place: | Hartford, Connecticut |
| Spouse: | Don David |
| Party: | Republican |
Betty Lou Mitchell (born August 14, 1937) is an American politician from Maine. A Republican, Mitchell served in the Maine Senate from 1996 to 2004, representing western Penobscot County, including her residence of Etna. Mitchell earned a diploma from Ellsworth High School in 1955.[1]