| Doug Piatt | |
| Position: | Pitcher |
| Bats: | Left |
| Throws: | Right |
| Birth Date: | 26 September 1965 |
| Birth Place: | Beaver, Pennsylvania |
| Debutleague: | MLB |
| Debutdate: | June 11 |
| Debutyear: | 1991 |
| Debutteam: | Montreal Expos |
| Finalleague: | MLB |
| Finaldate: | October 6 |
| Finalyear: | 1991 |
| Finalteam: | Montreal Expos |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat1value: | 0–0 |
| Stat2label: | Earned run average |
| Stat2value: | 2.60 |
| Stat3label: | Strikeouts |
| Stat3value: | 29 |
| Teams: | |
Douglas William Piatt (born September 26, 1965) is an American former Major League Baseball pitcher. He appeared in 21 games for the Montreal Expos in, all in relief. After posting a 2.60 earned run average and striking out 29 batters in 34 innings, Piatt never received another chance in the major leagues. He continued to pitch in the minor leagues until, finishing his career with the independent Waterbury Spirit.