| J. D. Smart | |
| Position: | Pitcher |
| Birth Date: | 12 November 1973 |
| Birth Place: | San Saba, Texas |
| Bats: | Right |
| Throws: | Right |
| Debutleague: | MLB |
| Debutdate: | April 6 |
| Debutyear: | 1999 |
| Debutteam: | Montreal Expos |
| Finalleague: | MLB |
| Finaldate: | June 30 |
| Finalyear: | 2001 |
| Finalteam: | Texas Rangers |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat1value: | 1–3 |
| Stat2label: | Earned run average |
| Stat2value: | 5.35 |
| Stat3label: | Strikeouts |
| Stat3value: | 31 |
| Teams: | |
Jon David "J. D." Smart (born November 12, 1973) is a former Major League Baseball pitcher who played for the Montreal Expos and Texas Rangers . He played college baseball for the Texas Longhorns.