Leon McFadden (born April 26, 1944) is an American former right-handed Major League Baseball shortstop and outfielder who played from 1968 to 1970 for the Houston Astros.

Prior to playing professional baseball, McFadden attended Fremont High School in Los Angeles, California, with future professional players Brock Davis, Willie Crawford, Bobby Tolan, and Bob Watson.

Originally signed as an undrafted free agent by the Houston Colt .45s in 1963, the 6 ft 2 in (1.88 m), 195 pound McFadden made his Major League debut on September 6, 1968 against Pat Jarvis and the Atlanta Braves.

Overall, McFadden appeared in 62 big league games, collecting 26 hits in 121 at-bats for a .215 batting average.

His son, Leon McFadden, is a current American football cornerback for the Dallas Cowboys of the NFL and played his college career at San Diego State University.