John Arthur Halla
- Bats Left, Throws Left
- Height 5' 11", Weight 175 lb.
- Debut August 18, 1905
- Final Game August 29, 1905
- Born May 13, 1884 in St. Louis, MO USA
- Died September 30, 1947 in El Segundo, CA USA
John Halla pitched three games for the 1905 Cleveland Naps, posting an ERA of 2.84.
The team ERA that year was 2.85.
John had a good minor league career with more than 195 wins. He won 20+ games at least four times. One of his best seasons was 1907 with Topeka, for whom he went 24-9 and also hit .232. Tex Erwin, who came to the majors at the end of August to begin a six-year major league career, hit .261 with Topeka that year.