The following are the baseball events of the year 1943 throughout the world.  

Champions

Major League Baseball

• World Series: New York Yankees over St. Louis Cardinals (4-1)
• All-Star Game, July 13 at Shibe Park: American League, 5-3

Other champions

• Negro League World Series: Homestead Grays over Birmingham Black Barons (4-3)
• Negro League Baseball All-Star Game: West, 2-1
• All-American Girls Professional Baseball League: Racine Belles over Kenosha Comets

Awards and honors

• Most Valuable Player
  • Spud Chandler (AL) - P, New York Yankees
  • Stan Musial (NL) - 1B, St. Louis Cardinals
• The Sporting News Player of the Year Award
  • Spud Chandler - P, New York Yankees
• The Sporting News Most Valuable Player Award
  • Spud Chandler (AL) - P, New York Yankees
  • Stan Musial (NL) - 1B, St. Louis Cardinals
• The Sporting News Manager of the Year Award
  • Joe McCarthy (AL) - New York Yankees

Statistical leaders

Major League Baseball final standings

American League final standings

National League final standings

Negro League Baseball final standings

Negro National League final standings

Events

• May 30 - The All-American Girls Professional Baseball League begins its first 108-game season with teams in Rockford, Kenosha, Racine, and South Bend; the league's total attendance for the year will be 176,612.

Births

January-April

• January 6 - César Gutiérrez
• January 7 - Dave Gray
• January 15 - Mike Marshall
• January 30 - Davey Johnson
• February 8 - Bob Oliver
• February 21 - Jack Billingham
• March 23 - Lee May
• April 3 - Barry Moore
• April 4 - Mike Epstein
• April 6 - Marty Pattin
• April 8 - John Hiller
• April 12 - Vicente Romo
• April 24 - Ivan Murrell

May-August

• May 22 - Tommy John
• June 6 - Merv Rettenmund
• June 20 - Andy Etchebarren
• June 26 - Bill Robinson
• June 27 - Rico Petrocelli
• July 5 - Curt Blefary
• July 9 - Mike Andrews
• August 2 - Tom Burgmeier
• August 6 - Nelson Briles
• August 15 - Bobby Treviño
• August 21 - Félix Millán
• August 28 - Lou Piniella
• August 30 - Carmen Fanzone

September-December

• September 2 - Luke Walker
• September 4 - Bobby Guindon
• September 19 - Mike Derrick
• September 19 - Joe Morgan
• October 4 - Jimy Williams
• October 6 - Jim McGlothlin
• October 6 - Jerry Stephenson
• October 7 - José Cardenal
• October 19 - Sandy Alomar
• November 18 - Dick Joyce
• November 19 - Aurelio Monteagudo
• December 3 - Jerry Johnson
• December 9 - Jim Merritt
• December 23 - Dave May
• December 27 - Roy White

Deaths

• January 3 - Bid McPhee, 83, second baseman for Cincinnati from 1882 to 1899 who was the last at his position to play without a glove; scored 100 runs ten times, set every career fielding mark at his position and was seventh player to reach 2000 hits
• March 6 - Jimmy Collins, 73, third baseman who batted .300 five times and led NL in home runs in 1898; led league in putouts five times and set career records for putouts, total chances and double plays at third base; after jumping to the American League, managed Boston to upset victory in inaugural 1903 World Series
• April 26 - Bob Emslie, 84, umpire who set records with 35 seasons of officiating and over 1000 games worked single-handedly; as pitcher, won 32 games for 1884 Baltimore Orioles
• May 6 - William Slocum, 59, sportswriter and editor for several New York newspapers since 1910
• May 23 - Pat Malone, 40, pitcher who led the National League with 22 wins in 1929, and with 20 wins and 166 strikeouts in 1930
• June 21 - Chet Chadbourne, 58, outfielder for the Boston Red Sox, Kansas City Packers and Boston Braves, who became a minor league institution after collecting 3.216 hits over 21 minors seasons, and later managed and umpired at the same level
• August 14 - Joe Kelley, 71, left fielder who batted .317 lifetime, including marks over .360 for the 1894-97 Baltimore Orioles; 194 triples ranked 4th all-time upon retirement, and had six seasons of 100 runs and five of 100 RBI
• August 27 - Frank Truesdale, 59, second baseman who played from 1910 to 1918 for the St. Louis Browns, New York Yankees and Boston Red Sox
• September 1 - Joe Connolly, 59, Boston Braves left fielder, who was the offensive star of the 1914 "Miracle Braves" World Champions