William Franklin Endicott (September 4, 1918 – November 26, 2016) was an American baseball left fielder who played briefly for the St. Louis Cardinals during the 1946 season. A native of Acorn, Missouri, he batted and threw left-handed, stood 5 feet 11 inches (1.80 m) tall and weighed 175 pounds (79 kg). His professional baseball career spanned 1937 through 1947, with four seasons (1942–1945) missed during United States Army service in World War II.
With the 1946 Cardinals, Endicott posted a .200 batting average (4-for-20) with two runs and three RBI in 20 major league games; his four hits included three doubles, and a .333 on-base percentage without home runs. He did not appear in the 1946 World Series, won by the Cardinals in seven games over the Boston Red Sox.
He died in November 2016 at the age of 98.