Daniel Webster Litwhiler (August 31, 1916 – September 23, 2011) was an American professional baseball player and coach.

He played in Major League Baseball as an outfielder from 1940 to 1951 for the Boston Braves, St. Louis Cardinals, Philadelphia Phillies, and Cincinnati Reds.

[2] After finishing the 1941 season with a .305 batting average, Litwhiler was selected to the All Star game in 1942, where he hit safely in his only at-bat.

[3] During his coaching career, he invented a very effective method of drying baseball fields after rain using calcined clay which was marketed as Diamond Grit, enabling play to resume very quickly and in the process saving organized baseball millions of dollars over the decades.

He was also one of the first coaches to make use of radar guns to measure pitching velocity, which effectively revolutionized the assessment of pitchers.