Major League Baseball 1878 var den tredje sæson i Major League Baseball. Én liga er i denne sæson kategoriseret som en major league:

National League 1878

Kilder / eksterne henvisninger

Retrosheet – The 1878 Season (engelsk)

Major League Baseball

Major League Baseball

Hold

American
League

East Division	Baltimore Orioles Boston Red Sox New York Yankees Tampa Bay Rays Toronto Blue Jays
Central Division	Chicago White Sox Cleveland Indians Detroit Tigers Kansas City Royals Minnesota Twins
West Division	Houston Astros Los Angeles Angels of Anaheim Oakland Athletics Seattle Mariners Texas Rangers

National
League

East Division	Atlanta Braves Miami Marlins New York Mets Philadelphia Phillies Washington Nationals
Central Division	Chicago Cubs Cincinnati Reds Milwaukee Brewers Pittsburgh Pirates St. Louis Cardinals
West Division	Arizona Diamondbacks Colorado Rockies Los Angeles Dodgers San Diego Padres San Francisco Giants

Sæsoner

Ligaer

National League (1876–)
American Association (1882–91)
Union Association (1884)
Players' League (1890)
American League (1901–)
Federal League (1914–15)

Kategorier