The 1975 Pittsburgh Pirates season was the 94th in the history of the franchise and their 89th in the National League. The Pirates' 92–69 record was good enough to win their fifth National League East title in six seasons by 61/2 games over their cross-state rivals, the Philadelphia Phillies. The Pirates, however, lost the NLCS to the Cincinnati Reds, three games to none.

Offseason

Regular season

Season standings

Record vs. opponents

Game log

Detailed records

Opening Day lineup

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

National League Championship Series

The Cincinnati Reds defeated the Pittsburgh Pirates, 3 games to 0.

Awards and honors

1975 Major League Baseball All-Star Game

Farm system