The 1963 Kansas City Athletics season was the ninth for the franchise in Kansas City and the 63rd overall. It involved the A's finishing eighth in the American League with a record of 73 wins and 89 losses, 31 1/2 games behind the AL Champion New York Yankees. The 1963 season was also the first season in which the Athletics debuted their current color scheme of green and gold.

Regular season

"Kelly green is the Athletics' accent color. It was more a nauseous green the players wore on their wholesome, clean-cut faces the first few times they had to appear in public looking like refugees from a softball league."

Season standings

Record vs. opponents

Notable transactions

Roster

Player stats

Batting

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''

Pitching

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

Awards and honors

All-Star Game

Farm system