| John A. Greer | |
| District: | 20th |
| State Senate: | Tennessee |
| Term Start: | 1909 |
| Term End: | 1911 |
| Predecessor: | William B. Greenlaw |
| Successor: | Tenant R. Brown |
| Birth Date: | 1874 |
| Birth Place: | Lobelville, Tennessee, US |
| Death Date: | 1941 |
| Death Place: | Memphis, Tennessee, US |
| Resting Place: | Fairview Cemetery, Newbern, Tennessee |
| Party: | Democratic Party (United States) |
| Spouse: | Mary Jones Greer[1] |
| Children: | 1 |
| Residence: | Dyersburg, Tennessee, US |
| Alma Mater: | Cumberland University |
| Profession: | Politician, lawyer |
John Allen Greer (1874–1941) was an American politician and attorney. Greer was member of the Tennessee State Senate representing Tennessee's 20th Senate district, composed of Lewis County, Maury County, and Perry County from 1909 to 1911.[2] During his time in state government he was a prominent advocate of alcohol prohibition.