| Rudy Arroyo | |
| Position: | Pitcher |
| Birth Date: | 19 June 1950 |
| Birth Place: | New York, New York |
| Bats: | Left |
| Throws: | Left |
| Debutleague: | MLB |
| Debutdate: | June 1 |
| Debutyear: | 1971 |
| Debutteam: | St. Louis Cardinals |
| Finalleague: | MLB |
| Finaldate: | June 24 |
| Finalyear: | 1971 |
| Finalteam: | St. Louis Cardinals |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat1value: | 0–1 |
| Stat2label: | Earned run average |
| Stat2value: | 5.40 |
| Stat3label: | Strikeouts |
| Stat3value: | 5 |
| Teams: | |
Rudolph Arroyo (born June 19, 1950) is a former Major League Baseball pitcher who played for one season. He pitched for the St. Louis Cardinals in nine games during the 1971 St. Louis Cardinals season.