|Date||July 9, 1940|
|City||St. Louis, Missouri|
|Ceremonial first pitch||None|
|Radio||Mutual, CBS, NBC, KWK|
|Radio announcers||Red Barber, Bob Elson (Mutual)|
Mel Allen, France Laux (CBS)
Tom Manning, Alex Buchan, Ray Schmidt (NBC)
Johnny O'Hara, Johnny Neblett (KWK)
The 1940 Major League Baseball All-Star Game was the eighth playing of the mid-summer classic between the all-stars of the American League (AL) and National League (NL), the two leagues comprising Major League Baseball. The game was held on July 9, 1940, at Sportsman's Park in St. Louis, Missouri, the home of the St. Louis Cardinals and St. Louis Browns. The game resulted in the National League defeating the American League 4–0.
Players in italics have since been inducted into the National Baseball Hall of Fame.
|Home Plate||Beans Reardon||National|
|First Base||George Pipgras||American|
|Second Base||Bill Stewart||National|
|Third Base||Steve Basil||American|
The umpires changed assignments in the middle of the fifth inning – Reardon and Basil swapped positions, also Pipgras and Stewart swapped positions.
|American League||National League|
|1||Cecil Travis||Senators||3B||1||Arky Vaughan||Pirates||SS|
|2||Ted Williams||Red Sox||LF||2||Billy Herman||Cubs||2B|
|3||Charlie Keller||Yankees||RF||3||Max West||Braves||RF|
|4||Joe DiMaggio||Yankees||CF||4||Johnny Mize||Cardinals||1B|
|5||Jimmie Foxx||Red Sox||1B||5||Ernie Lombardi||Reds||C|
|6||Luke Appling||White Sox||SS||6||Joe Medwick||Dodgers||LF|
|7||Bill Dickey||Yankees||C||7||Cookie Lavagetto||Dodgers||3B|
|8||Joe Gordon||Yankees||2B||8||Terry Moore||Cardinals||CF|
|9||Red Ruffing||Yankees||P||9||Paul Derringer||Reds||P|
|WP: Paul Derringer (1–0) LP: Red Ruffing (0–1) Sv: Carl Hubbell (1)|
NL: Max West (1)
- Player declined or was unable to play.
- "National League 4, American League 0". Retrosheet. July 9, 1940. Retrieved October 23, 2016.