Not counting the oldest incarnations (such as the Tribe used to be the Cleveland Spiders long LONG ago):
There's 30 teams now.
Add in the following: The Brooklyn Dodgers The Boston Braves The Washington Senators The NY Giants, I think. The Philly Athletics.
Those are all the ones I can think of. That's 35 so far.
I can't say exactly how many teams there have been in MLB history,but the number would be considerably more than 35.Teams have come and gone that played in the same city but have been completely different franchises.For example,the Cleveland Spiders and the Cleveland Indians.The Spiders played in the National League in the 1890's and were dropped by the league before the 1898 season. The Indians were formed in the American League in 1901.Same city, different teams. Only taking in to account professional baseball from 1871 and the formation of the National Association,other Major Leagues such as the American Association of the 1880's and 90's,the Federal League of 1914-15 and the current National League (1876) and American League (1901), dozens of teams perhaps numbering a hundred or more have come and gone from the major leagues.
tere was the st. lous browns i beleive
Of course there are those that have simply upped and moved, so it depends on your definition of how many, but the complete list of differently named franchises since 1871 would total 120 according to Lahman:
Altoona Mountain City
Los Angeles Angels of Anaheim
Philadelphia Athletics
Atlanta Braves
Baltimore Orioles
Buffalo Bisons
Buffalo Bisons
Baltimore Canaries
Baltimore Orioles
Baltimore Terrapins
Baltimore Monumentals
Boston Red Stockings
Boston Red Sox
Brooklyn Atlantics
Boston Reds
Brooklyn Gladiators
Boston Reds
Brooklyn Tip-Tops
Buffalo Bisons
Brooklyn Ward's Wonders
Columbus Buckeyes
Cleveland Blues
Philadelphia Centennials
Cleveland Forest Citys
Chicago Cubs
Chicago Whales
Chicago Pirates
Chicago White Sox
Cincinnati Reds
Cincinnati Kelly's Killers
Cleveland Indians
Cleveland Infants
Columbus Solons
Cleveland Spiders
Chicago White Stockings
Cincinnati Reds
Colorado Rockies
Cincinnati Outlaw Reds
Chicago/Pittsburgh (Union League)
Detroit Tigers
Detroit Wolverines
Brooklyn Eckfords
Florida Marlins
Hartford Dark Blues
Hartford Dark Blues
Houston Astros
Indianapolis Blues
Indianapolis Hoosiers
Indianapolis Hoosiers
Kansas City Cowboys
Kansas City Cowboys
Kansas City Packers
Kansas City Royals
Kansas City Cowboys
Fort Wayne Kekiongas
Los Angeles Dodgers
Louisville Grays
Louisville Colonels
Middletown Mansfields
Baltimore Marylands
Milwaukee Brewers
Minnesota Twins
Milwaukee Brewers
Milwaukee Grays
Milwaukee Brewers
Washington Nationals
Newark Pepper
New Haven Elm Citys
New York Mutuals
New York Giants
New York Mets
New York Metropolitans
New York Mutuals
New York Yankees
Oakland Athletics
Washington Olympics
Pittsburgh Burghers
Pittsburgh Rebels
Philadelphia Athletics
Philadelphia Keystones
Philadelphia Athletics
Pittsburgh Pirates
Philadelphia Athletics
Providence Grays
Philadelphia White Stockings
Elizabeth Resolutes
Richmond Virginians
Rochester Broncos
Rockford Forest Citys
St. Louis Brown Stockings
San Diego Padres
Seattle Mariners
St. Louis Terriers
St. Louis Maroons
St. Louis Red Stockings
St. Louis Brown Stockings
St. Louis Cardinals
St. Paul Apostles
Syracuse Stars
Syracuse Stars
Tampa Bay Rays
Texas Rangers
Toledo Maumees
Toledo Blue Stockings
Toronto Blue Jays
Troy Haymakers
Troy Trojans
Washington Senators
Washington Blue Legs
Keokuk Westerns
Wilmington Quicksteps
Washington Nationals
Washington Nationals
Washington Nationals
Worcester Ruby Legs
Washington Nationals
Washington Statesmen
There were 30 teams in Major League Baseball in 2005.
There is one Major League Baseball team, the Miami Marlins.
Angels, A's, Indians, Orioles,
Beginning with the 2013 Major League Baseball season, there will be 15 teams in the National League and 15 in the American League. A longtime imbalance between the two leagues is being solved by the transfer of the Houston Astros from the N.L. Central to the A.L. West.
At the start of the 2012 MLB Season there are 30 teams, 16 in the national league and 14 in the american league. Starting 2013, both leagues will have 15 teams each with the Houston Astros being moved to the American League West division as required by Bud Selig.
In 2008, Major League Baseball (MLB) consisted of 30 teams.
There are 14 teams in the American League of Major League Baseball.1414 teams
There are 15 teams in the American League and 15 teams in the National League for a total of 30.
There are 16 National League teams and 14 American League teams for a total of 30.
29 Major League Baseball teams are in the United States. 1 Major League Baseball team is in Canada.
34
In the major leagues, there are 29 baseball teams in the US; but there is one major league team, the Toronto Blue Jays, in Canada.
There were 30 teams in Major League Baseball in 2005.
Currently (as of January 2014), there are 30 teams in Major League Baseball: 15 in the American League, plus 15 in the National League.
45
Twenty five
30 teams (14 American league, 16 national league)