| Middle Atlantic League | |
| Sport: | Minor League Baseball |
| President: | Ray H. Archibald (1925) Elmer M. Daily (1926–1942, 1946–1951) |
| Teams: | 30 |
| Country: | United States |
| Continent: | or |
| Continents: | --> |
| Classification: | Class C (1925–1942, 1946–1951) |
| Related Comps: | Blue Ridge League Central League Pennsylvania State Association |
The Middle Atlantic League (or Mid-Atlantic League) was a lower-level circuit in American minor league baseball that played during the second quarter of the 20th century.
The Middle Atlantic League played from 1925 through 1951, with the exception of three seasons (1943–45) when the loop suspended operations during World War II. The league primarily featured clubs based in the U.S. states of Pennsylvania, Ohio and West Virginia, although it had a team in Maryland and, in its final season, one in New York. Its longest-tenured team, in Johnstown, Pennsylvania - the Johnnies - existed for 19 seasons. Its final champion was the 1951 Niagara Falls Citizens.
Throughout its 24-year history, the Middle Atlantic League was a Class-C level, one rung up from the lowest classification, Class-D.
Elmer M. Daily was president of the league through 23 years of its existence.
Akron Yankees 1935 - 1941
Altoona Engineers 1931
Beaver Falls Beavers 1931
Beckley Black Knights 1931 - 1934; Beckley Miners 1935
Butler Yankees 1946 - 1947; Butler Tigers 1948 - 1951
Canton Terriers 1936 - 1942
Charleroi Babes 1927 - 1928; Charleroi Governors 1929 - 1931
Charleston Senators 1931 - 1942
Clarksburg Generals 1925 - 1932
Cumberland Colts 1925 - 1932, 1941 - 1942
Dayton Ducks 1933 - 1938; Dayton Wings 1939 - 1940
Erie Sailors 1938 - 1939, 1941 - 1942,1946 - 1951
Fairmont Maroons 1925; Fairmont Black Diamonds 1926 - 1931
Hagerstown Hubs 1931
Huntington Boosters 1931 - 1933; Huntington Red Birds 1934 - 1936
Jeannette Jays 1926 - 1931
Johnstown Johnnies 1925 - 1938, 1946 - 1950
Lockport Locks 1951
New Castle Chiefs 1948; New Castle Nats 1949 - 1950; New Castle Indians 1951
Niagara Falls Frontiers 1946 - 1947; Niagara Falls Citizens 1950 - 1951
Oil City Oilers 1946; Oil City Refiners 1947 - 1950; Oil City A's 1951
Parkersburg Parkers 1931
Portsmouth Pirates 1935 - 1936; Portsmouth Red Birds 1937 - 1940
Scottdale Scotties 1925 - 1930; Scottdale Cardinals 1931
Springfield Chicks 1933; Springfield Pirates 1934; Springfield Indians 1937 - 1939; Springfield Cardinals 1941 - 1942
Uniontown Cokers 1926; Uniontown Coal Barons 1947 - 1949
Vandergrift Pioneers 1947 - 1950
Wheeling Stogies 1925 - 1931, 1933 - 1934
Youngstown Tubers 1931; Youngstown Browns 1939 - 1941; Youngstown Gremlins 1946; Youngstown Colts 1947 - 1948; Youngstown Athletics 1949 - 1951
Zanesville Grays 1933 - 1937; Zanesville Cubs 1941 - 1942