| Fred Rath | |
| Position: | Pitcher |
| Birth Date: | 1 September 1943 |
| Birth Place: | Little Rock, Arkansas |
| Bats: | Right |
| Throws: | Right |
| Debutleague: | MLB |
| Debutdate: | September 10 |
| Debutyear: | 1968 |
| Debutteam: | Chicago White Sox |
| Finalleague: | MLB |
| Finaldate: | September 28 |
| Finalyear: | 1969 |
| Finalteam: | Chicago White Sox |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat1value: | 0–2 |
| Stat2label: | Earned run average |
| Stat2value: | 4.70 |
| Stat3label: | Strikeouts |
| Stat3value: | 7 |
| Teams: | |
Frederick Helsher Rath Sr. (born September 1, 1943) is a former Major League Baseball pitcher who appeared in 8 games for the Chicago White Sox during the and seasons. He threw right-handed.
Rath, who attended Baylor University, was drafted by the White Sox in the 4th round of the 1965 amateur draft and made his major league debut 3 years later. Following the season he was traded to the California Angels for John Purdin, but never appeared in a major league game again.
Rath's son, Fred Rath Jr., also had a brief major league career, appearing in two games for the Colorado Rockies in .