John Brown Duffie (October 4, 1945 – April 19, 2018) was an American pitcher in Major League Baseball. He was the starting pitcher in two games for the Los Angeles Dodgers during the 1967 MLB season. Duffie died on April 19, 2018, at the age of 72 at Coffee Regional Medical Center following a brief illness.
John Duffie
| Given name: | John Brown Duffie |
| Nicknames: | None |
| Primary Pos: | Pitcher |
| Hght/Wght: | 6'7" / 210 lbs |
| Bats/Throws: | R / R |
| Born: | Oct 4, 1945 in Greenwood, SC |
| Died: | Apr 19, 2018 in Douglas, GA (72 years old) |
| Debut: | Sep 18, 1967 |