Charles Eugene "Truck" Eagan (August 10, 1877 – March 19, 1949) was an American Major League Baseball infielder who played in 1901 with the Pittsburgh Pirates and the Cleveland Blues. He batted and threw right-handed. Eagan had a .133 career batting average.
For his long career in the minor leagues, where he had 1,830 hits and 105 home runs, Eagan was elected to the Pacific Coast League Hall of Fame.
He was born and died in San Francisco, California.