| Lefty Mills | |
| Position: | Pitcher |
| Birth Date: | 10 May 1912 |
| Birth Place: | Dedham, Massachusetts, U.S. |
| Death Place: | Riverside, California |
| Bats: | Left |
| Throws: | Left |
| Debutleague: | MLB |
| Debutdate: | June 10 |
| Debutyear: | 1934 |
| Debutteam: | St. Louis Browns |
| Finalleague: | MLB |
| Finaldate: | August 29 |
| Finalyear: | 1940 |
| Finalteam: | St. Louis Browns |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat1value: | 15–30 |
| Stat2label: | Earned run average |
| Stat2value: | 6.06 |
| Stat3label: | Strikeouts |
| Stat3value: | 267 |
| Teams: |
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Howard Robinson "Lefty" Mills (May 10, 1912 – September 23, 1982) was a Major League Baseball pitcher. He played all or part of five seasons in the majors, between and, for the St. Louis Browns. He was a native of Dedham, Massachusetts.