Harold Thompson (September 9, 1889 – February 14, 1951) was an American Major League Baseball pitcher who played in 1919 with the Washington Senators and the Philadelphia Athletics.
Harry Thompson
| Given name: | Harold Thompson |
| Nicknames: | Lefty |
| Primary Pos: | Pitcher |
| Hght/Wght: | 5'8" / 150 lbs |
| Bats/Throws: | L / L |
| Born: | Sep 9, 1889 in Nanticoke, PA |
| Died: | Feb 14, 1951 in Reno, NV (61 years old) |
| Debut: | Apr 24, 1919 |