| Bob Kaiser | |
| Position: | Pitcher |
| Bats: | Switch |
| Throws: | Left |
| Birth Date: | 29 April 1950 |
| Birth Place: | Cincinnati, Ohio |
| Debutleague: | MLB |
| Debutdate: | September 3 |
| Debutyear: | 1971 |
| Debutteam: | Cleveland Indians |
| Finalleague: | MLB |
| Finaldate: | September 18 |
| Finalyear: | 1971 |
| Finalteam: | Cleveland Indians |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat1value: | 0–0 |
| Stat2label: | Earned run average |
| Stat2value: | 4.50 |
| Stat3label: | Innings |
| Stat3value: | 6 |
| Teams: |
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Robert Thomas Kaiser (born April 29, 1950) is an American former Major League Baseball pitcher, a left-handed reliever who appeared in five games for the Cleveland Indians during the 1971 season. Kaiser stood 5feet tall and weighed .
Selected in the second round in the 1968 Major League Baseball Draft, Kaiser was recalled by Cleveland after spending the 1971 season at three levels of minor league baseball, Class A through Triple-A. In his MLB debut, he surrendered a home run to the first batter he faced, Duane Josephson of the Boston Red Sox. But he finished the inning strongly by striking out a future Hall of Famer, Carl Yastrzemski.[1]
All told, he allowed eight hits and three earned runs in six MLB innings pitched, with three bases on balls and four strikeouts. He did not record a save.