| Jeff Kaiser | |
| Width: | 175 |
| Position: | Pitcher |
| Bats: | Right |
| Throws: | Left |
| Birth Date: | 24 July 1960 |
| Birth Place: | Wyandotte, Michigan, U.S. |
| Debutleague: | MLB |
| Debutdate: | April 11 |
| Debutyear: | 1985 |
| Debutteam: | Oakland Athletics |
| Finalleague: | MLB |
| Finaldate: | May 17 |
| Finalyear: | 1993 |
| Finalteam: | New York Mets |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat1value: | 0–2 |
| Stat2label: | Earned run average |
| Stat2value: | 9.17 |
| Stat3label: | Strikeouts |
| Stat3value: | 38 |
| Teams: |
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Jeffrey Patrick Kaiser (born July 24, 1960) is an American former Major League Baseball pitcher. Kaiser attended Aquinas High School in Southgate, Michigan where he was teammates with Paul Assenmacher.[1] He played college baseball at Western Michigan University, winning a school record 25 games.[2] He pitched parts of seven seasons in the majors for five teams between and . He never pitched more than 15 games or 16.2 innings in a major league season. He finished his career with an ERA of 9.17 in 50 games.