| Sam Frock | |
| Position: | Pitcher |
| Birth Date: | 23 December 1882 |
| Birth Place: | Baltimore, Maryland, U.S. |
| Death Place: | Baltimore, Maryland, U.S. |
| Bats: | Right |
| Throws: | Right |
| Debutleague: | MLB |
| Debutdate: | September 21 |
| Debutyear: | 1907 |
| Debutteam: | Boston Doves |
| Finalleague: | MLB |
| Finaldate: | May 6 |
| Finalyear: | 1911 |
| Finalteam: | Boston Rustlers |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat1value: | 15–23 |
| Stat3label: | Strikeouts |
| Stat3value: | 202 |
| Stat2label: | Earned run average |
| Stat2value: | 3.23 |
| Teams: | |
| Highlights: |
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Samuel "Sam" William Frock (December 23, 1882 - November 3, 1925) was an American professional baseball player who played four Major league seasons between and .He was born in Baltimore, Maryland and died there at the age of 42.