The 1948 Major League Baseball season was the Chicago White Sox' 48th season in the major leagues, and its 49th season overall. They finished eighth (last) in the American League with a 51–101 record, 44.5 games behind the first place Cleveland Indians. In 114 seasons, the White Sox have only once (in 1932) had a worse winning percentage. This was the first year of many for White Sox television broadcasts on WGN-TV channel 9.

Offseason

Regular season

Frank Lane was in his first season as White Sox general manager. Over the next seven years with the White Sox, Lane would make 241 trades. He would gain the nicknames "Trader" Lane and "Frantic Frank". On July 18, Pat Seerey hit four home runs in an eleven inning game against the Philadelphia Athletics. The White Sox won, 12–11.

Season standings

Record vs. opponents

Opening Day lineup

Roster

Player stats

Batting

Note: G = Games played; AB = At bats; R = Runs scored; H = Hits; 2B = Doubles; 3B = Triples; HR = Home runs; RBI = Runs batted in; BB = Base on balls; SO = Strikeouts; AVG = Batting average; SB = Stolen bases

Pitching

Note: W = Wins; L = Losses; ERA = Earned run average; G = Games pitched; GS = Games started; SV = Saves; IP = Innings pitched; H = Hits allowed; R = Runs allowed; ER = Earned runs allowed; HR = Home runs allowed; BB = Walks allowed; K = Strikeouts

Farm system

LEAGUE CHAMPIONS: Hot Springs, Seminole