1942 Philadelphia Athletics season

The 1942 Philadelphia Athletics season involved the A's finishing eighth in the American League with a record of 55 wins and 99 losses.

Offseason

 * November 26, 1941: Fred Chapman was traded by the Athletics to the Toronto Maple Leafs for Walter Klimczak (minors).
 * December 9, 1941: Wally Moses was traded by the Athletics to the Chicago White Sox for Mike Kreevich and Jack Hallett.

Notable transactions

 * June 1, 1942: Frankie Hayes was traded by the Athletics to the St. Louis Browns for Bob Harris and Bob Swift.

Starters by position
''Note: Pos = Position; G = Games played; AB = At bats; H = Hits; Avg. = Batting average; HR = Home runs; RBI = Runs batted in''

Other batters
''Note: G = Games played; AB = At bats; H = Hits; Avg. = Batting average; HR = Home runs; RBI = Runs batted in''

Starting pitchers
Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts

Other pitchers
Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts

Relief pitchers
Note: G = Games pitched; W = Wins; L = Losses; SV = Saves; ERA = Earned run average; SO = Strikeouts

Farm system
LEAGUE CHAMPIONS: Wilmington Toronto affiliation shared with Pittsburgh Pirates