Elmer Joseph Koestner (November 30, 1885 – October 27, 1959) was a Major League Baseball pitcher who played for two seasons. He played for the Cleveland Naps in 1910 and the Chicago Cubs and Cincinnati Reds in 1914.
Elmer Koestner
| Given name: | Elmer Joseph Koestner |
| Nicknames: | None |
| Primary Pos: | Pitcher |
| Hght/Wght: | 6'1" / 175 lbs |
| Bats/Throws: | R / R |
| Born: | Nov 30, 1885 in Piper City, IL |
| Died: | Oct 27, 1959 in Fairbury, IL (73 years old) |
| Debut: | Apr 23, 1910 |