The Cardinals went 82-80 during the season and finished in a tie for third (with the New York Mets) in the National League East, 101⁄2 games behind the Pittsburgh Pirates.
- October 14, 1974: Marc Hill was traded by the Cardinals to the San Francisco Giants for Ken Rudolph and Elías Sosa.
- November 18, 1974: Alan Foster, Rich Folkers and Sonny Siebert were traded by the Cardinals to the San Diego Padres as part of a three team trade. The Padres sent a player to be named later to the Cardinals, and the Detroit Tigers sent Ed Brinkman to the Cardinals. The Tigers sent Bob Strampe and Dick Sharon to the Padres. The Padres sent Nate Colbert to the Tigers. The Padres completed the deal by sending Danny Breeden to the Cardinals on December 12.
- March 26, 1975: Ron Hunt was released by the Cardinals.
- March 29, 1975: Danny Godby was traded by the Cardinals to the Boston Red Sox for Danny Cater.
Bob Gibson Retires
Third baseman Ken Reitz won a Gold Glove this year.
1975 was also the final major league season as pitcher Bob Gibson retires
Transactions During the Season
- May 28, 1975: Elías Sosa and Ray Sadecki were traded by the Cardinals to the Atlanta Braves for Ron Reed and a player to be named later. The Braves completed the deal by sending Wayne Nordhagen to the Cardinals on June 2.
- June 3, 1975: Jim Lentine was drafted by the Cardinals in the 12th round of the 1975 Major League Baseball Draft.
- June 4, 1975: Ed Brinkman and Tommy Moore were traded by the Cardinals to the Texas Rangers for Willie Davis.
- July 22, 1975: Ken Crosby was traded by the Cardinals to the Chicago Cubs for Eddie Solomon.