The 1909 College Baseball All-Southern Team consists of baseball players selected at their respective positions after the 1909 IAAUS baseball season.
| Position | Name | School | Selectors | |
| Pitcher | Bob Gantt | Trinity | H | |
| Pitcher | Tucker | Alabama | H, NT | |
| Pitcher | J. E. Mayer | Georgia Tech | H | |
| Pitcher | Baney Mitchell | Mississippi A&M | NT | |
| Pitcher | Bob Mitchell | Mississippi | NT | |
| Pitcher | Frank Allen | SPU | NT | |
| Pitcher | Sawrie | Sewanee | NT | |
| Catcher | Corlis Buchanan | Georgia Tech | H, NT [as SS] | |
| Catcher | Vaughn | Alabama | NT | |
| First baseman | McCoy | Auburn | H | |
| First baseman | Hodgson | Tennessee | NT | |
| Second baseman | Claud Derrick | Georgia | H, NT | |
| Third baseman | W. West | Trinity | H | |
| Shortstop | Del Pratt | Alabama | H, NT [as 3B] | |
| Outfielder | Cochran | Clemson | H | |
| Outfielder | W. Baker | Tennessee | H | |
| Outfielder | Goldnamer | Vanderbilt | H | |
| Outfielder | Wallace Pinson | Vanderbilt | NT | |
| Outfielder | Carlin | Tennessee | NT | |
| Outfielder | Gillem | Sewanee | NT | |
| Utility | Smith | Auburn | H |
H = John Heisman's selection.[1]
NT = published in the Nashville Tennessean, meant to be selection of all the various colleges.[2]