| John Deering | |
| Position: | Pitcher |
| Bats: | Right |
| Throws: | Right |
| Birth Date: | 25 June 1879 |
| Birth Place: | Lynn, Massachusetts |
| Death Place: | Beverly, Massachusetts |
| Debutleague: | MLB |
| Debutdate: | May 12 |
| Debutteam: | Detroit Tigers |
| Finalleague: | MLB |
| Finaldate: | September 25 |
| Finalteam: | New York Highlanders |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat1value: | 7–7 |
| Stat2label: | Earned run average |
| Stat2value: | 3.80 |
| Stat3label: | Strikeouts |
| Stat3value: | 28 |
| Teams: | |
John Thomas Deering (June 25, 1879 – February 15, 1943) was a Major League Baseball pitcher who played in with the Detroit Tigers and the New York Highlanders. He batted and threw right-handed.
He was born in Lynn, Massachusetts, and died in Beverly, Massachusetts.