The 1952 Major League Baseball season was contested from April 15 to October 7, 1952. The Braves were playing their final season in Boston, before the team relocated to Milwaukee the following year, thus, ending fifty seasons without any MLB team relocating.

• Baseball Hall of Fame
  • Harry Heilmann
  • Paul Waner
• Most Valuable Player
  • Bobby Shantz, Philadelphia Athletics, P (AL)
  • Hank Sauer, Chicago Cubs, OF (NL)
• Rookie of the Year
  • Harry Byrd, Philadelphia Athletics, P (AL)
  • Joe Black, Brooklyn Dodgers, P (NL)
• The Sporting News Player of the Year Award
  • Robin Roberts, Philadelphia Phillies, P
• The Sporting News Manager of the Year Award
  • Eddie Stanky, St. Louis Cardinals

• April 23 — Bob Cain of the St. Louis Browns bested Bob Feller of the Cleveland Indians in matching 1-hitters, 1-0, at Sportsman's Park. This was only the second double one-hitter in the modern era (since 1901).^[17]
• June 22 – Boston Braves player Sid Gordon hits a two-run homer over the left field fence at Braves Field. His homer won Gordon the prize of a 100-pound bear cub for being the first Braves player to homer on "State of Maine Day". After the game, Gordon was presented with the animal in the Braves clubhouse.^[18]
• August 23 – Bob Elliott of the New York Giants is ejected for arguing a strike call during an at-bat against the St. Louis Cardinals at Sportsman's Park. Bobby Hofman completes Elliott's at-bat. Hofman strikes out and is also ejected for arguing.^[19]

• 1952 All-American Girls Professional Baseball League season
• 1952 Nippon Professional Baseball season