Charles "Kid" Keinath (November 13, 1886 – April 18, 1966) was an American college athlete who was a four-time All-American in basketball while at the University of Pennsylvania.
In 1907–08, the basketball team finished 24–4 and was retroactively named the national champions by the Helms Athletic Foundation.
Keinath was a native of Philadelphia, Pennsylvania, and attended Central High School, where he graduated in 1905.
In addition to being selected an All-American all four years and winning a national championship, Keinath also led the Eastern Intercollegiate Basketball League in scoring during both his junior and senior seasons.
After graduating from the University of Pennsylvania in 1909, Keinath became the coach of the freshmen baseball and varsity men's basketball teams.