Kenneth David Raffensberger (August 8, 1917 – November 10, 2002) was an American starting pitcher in Major League Baseball (MLB).

From 1939 through 1954, he played for the St. Louis Cardinals (1939), Chicago Cubs (1940–41), Philadelphia Phillies (1943–47), and Cincinnati Reds/Redlegs (1947–54).

In a 15-season big league career, Raffensberger posted a win–loss record of 119–154 with 806 strikeouts and a 3.60 earned run average (ERA) in 2,151+2⁄3 innings pitched.

However, further along in his career (beginning in the early 1940s), he developed an arsenal of additional pitches to complement his fastball: a dependable forkball, a slow curveball, and a changeup.

[1] On November 10, 2002, Raffensberger died in his native York, Pennsylvania, at the age of 85.